Core/Scripts: Fixed build of boss_* scripts

88 files changed, 453 insertions, 508 deletions

diff --git a/src/server/game/AI/SmartScripts/SmartAI.cpp b/src/server/game/AI/SmartScripts/SmartAI.cpp
index edb2b589dc1..bdad018c622 100644
--- a/src/server/game/AI/SmartScripts/SmartAI.cpp
+++ b/src/server/game/AI/SmartScripts/SmartAI.cpp
@@ -698,7 +698,7 @@ void SmartAI::SetGUID(ObjectGuid /*guid*/, int32 /*id*/) { }
 
 ObjectGuid SmartAI::GetGUID(int32 /*id*/) const
 {
-    return 0;
+    return ObjectGuid::Empty;
 }
 
 void SmartAI::SetRun(bool run)
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_tomb_of_seven.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_tomb_of_seven.cpp
index 6f4e3d221df..6706713698d 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_tomb_of_seven.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_tomb_of_seven.cpp
@@ -202,7 +202,7 @@ class boss_doomrel : public CreatureScript
             {
                 ScriptedAI::EnterEvadeMode();
 
-                _instance->SetGuidData(DATA_EVENSTARTER, 0);
+                _instance->SetGuidData(DATA_EVENSTARTER, ObjectGuid::Empty);
             }
 
             void JustDied(Unit* /*killer*/) override
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_midnight.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_midnight.cpp
index bbddf0aa5f5..87f7ab5f07e 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_midnight.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_midnight.cpp
@@ -75,10 +75,10 @@ public:
         void Initialize()
         {
             ResetTimer = 0;
-            Midnight = 0;
+            Midnight.Clear();
         }
 
-        uint64 Midnight;
+        ObjectGuid Midnight;
         uint8 Phase;
         uint32 CleaveTimer;
         uint32 CurseTimer;
@@ -141,11 +141,11 @@ public:
         void Initialize()
         {
             Phase = 1;
-            Attumen = 0;
+            Attumen.Clear();
             Mount_Timer = 0;
         }
 
-        uint64 Attumen;
+        ObjectGuid Attumen;
         uint8 Phase;
         uint32 Mount_Timer;
 
@@ -242,7 +242,7 @@ public:
             Mount_Timer = 1000;
         }
 
-        void SetMidnight(Creature* pAttumen, uint64 value)
+        void SetMidnight(Creature* pAttumen, ObjectGuid value)
         {
             ENSURE_AI(boss_attumen::boss_attumenAI, pAttumen->AI())->Midnight = value;
         }
@@ -262,7 +262,7 @@ void boss_attumen::boss_attumenAI::UpdateAI(uint32 diff)
                 pMidnight->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                 pMidnight->SetVisible(true);
             }
-            Midnight = 0;
+            Midnight.Clear();
             me->SetVisible(false);
             me->Kill(me);
         } else ResetTimer -= diff;
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_moroes.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_moroes.cpp
index 62fdaa94739..0d9827d390c 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_moroes.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_moroes.cpp
@@ -107,7 +107,6 @@ public:
         {
             Initialize();
             memset(AddId, 0, sizeof(AddId));
-            memset(AddGUID, 0, sizeof(AddGUID));
 
             instance = creature->GetInstanceScript();
         }
@@ -126,7 +125,7 @@ public:
 
         InstanceScript* instance;
 
-        uint64 AddGUID[4];
+        ObjectGuid AddGUID[4];
 
         uint32 Vanish_Timer;
         uint32 Blind_Timer;
@@ -339,13 +338,10 @@ struct boss_moroes_guestAI : public ScriptedAI
 {
     InstanceScript* instance;
 
-    uint64 GuestGUID[4];
+    ObjectGuid GuestGUID[4];
 
     boss_moroes_guestAI(Creature* creature) : ScriptedAI(creature)
     {
-        for (uint8 i = 0; i < 4; ++i)
-            GuestGUID[i] = 0;
-
         instance = creature->GetInstanceScript();
     }
 
@@ -358,13 +354,13 @@ struct boss_moroes_guestAI : public ScriptedAI
     {
         if (Creature* Moroes = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MOROES)))
             for (uint8 i = 0; i < 4; ++i)
-                if (uint64 GUID = ENSURE_AI(boss_moroes::boss_moroesAI, Moroes->AI())->AddGUID[i])
+                if (ObjectGuid GUID = ENSURE_AI(boss_moroes::boss_moroesAI, Moroes->AI())->AddGUID[i])
                     GuestGUID[i] = GUID;
     }
 
     Unit* SelectGuestTarget()
     {
-        uint64 TempGUID = GuestGUID[rand32() % 4];
+        ObjectGuid TempGUID = GuestGUID[rand32() % 4];
         if (TempGUID)
         {
             Unit* unit = ObjectAccessor::GetUnit(*me, TempGUID);
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_netherspite.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_netherspite.cpp
index d71061259c4..77e9e3fe86d 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_netherspite.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_netherspite.cpp
@@ -81,13 +81,6 @@ public:
             Initialize();
             instance = creature->GetInstanceScript();
 
-            for (int i=0; i<3; ++i)
-            {
-                PortalGUID[i] = 0;
-                BeamTarget[i] = 0;
-                BeamerGUID[i] = 0;
-            }
-
             PortalPhase = false;
             PhaseTimer = 0;
             EmpowermentTimer = 0;
@@ -112,9 +105,9 @@ public:
         uint32 NetherbreathTimer;
         uint32 EmpowermentTimer;
         uint32 PortalTimer; // timer for beam checking
-        uint64 PortalGUID[3]; // guid's of portals
-        uint64 BeamerGUID[3]; // guid's of auxiliary beaming portals
-        uint64 BeamTarget[3]; // guid's of portals' current targets
+        ObjectGuid PortalGUID[3]; // guid's of portals
+        ObjectGuid BeamerGUID[3]; // guid's of auxiliary beaming portals
+        ObjectGuid BeamTarget[3]; // guid's of portals' current targets
 
         bool IsBetween(WorldObject* u1, WorldObject* target, WorldObject* u2) // the in-line checker
         {
@@ -157,7 +150,7 @@ public:
             pos[GREEN_PORTAL] = ((r % 2) ? 0 : (r > 1 ? 2 : 1));
             pos[BLUE_PORTAL] = (r > 1 ? 1 : 2); // Blue Portal not on the left side (0)
 
-            for (int i=0; i<3; ++i)
+            for (int i = 0; i < 3; ++i)
                 if (Creature* portal = me->SummonCreature(PortalID[i], PortalCoord[pos[i]][0], PortalCoord[pos[i]][1], PortalCoord[pos[i]][2], 0, TEMPSUMMON_TIMED_DESPAWN, 60000))
                 {
                     PortalGUID[i] = portal->GetGUID();
@@ -173,14 +166,14 @@ public:
                     portal->DisappearAndDie();
                 if (Creature* portal = ObjectAccessor::GetCreature(*me, BeamerGUID[i]))
                     portal->DisappearAndDie();
-                PortalGUID[i] = 0;
-                BeamTarget[i] = 0;
+                PortalGUID[i].Clear();
+                BeamTarget[i].Clear();
             }
         }
 
         void UpdatePortals() // Here we handle the beams' behavior
         {
-            for (int j=0; j<3; ++j) // j = color
+            for (int j = 0; j < 3; ++j) // j = color
                 if (Creature* portal = ObjectAccessor::GetCreature(*me, PortalGUID[j]))
                 {
                     // the one who's been cast upon before
@@ -198,9 +191,9 @@ public:
                             Player* p = i->GetSource();
                             if (p && p->IsAlive() // alive
                                 && (!target || target->GetDistance2d(portal)>p->GetDistance2d(portal)) // closer than current best
-                                && !p->HasAura(PlayerDebuff[j], 0) // not exhausted
-                                && !p->HasAura(PlayerBuff[(j+1)%3], 0) // not on another beam
-                                && !p->HasAura(PlayerBuff[(j+2)%3], 0)
+                                && !p->HasAura(PlayerDebuff[j]) // not exhausted
+                                && !p->HasAura(PlayerBuff[(j + 1) % 3]) // not on another beam
+                                && !p->HasAura(PlayerBuff[(j + 2) % 3])
                                 && IsBetween(me, p, portal)) // on the beam
                                 target = p;
                         }
@@ -220,7 +213,7 @@ public:
                         {
                             beamer->CastSpell(target, PortalBeam[j], false);
                             beamer->DisappearAndDie();
-                            BeamerGUID[j] = 0;
+                            BeamerGUID[j].Clear();
                         }
                         // create new one and start beaming on the target
                         if (Creature* beamer = portal->SummonCreature(PortalID[j], portal->GetPositionX(), portal->GetPositionY(), portal->GetPositionZ(), portal->GetOrientation(), TEMPSUMMON_TIMED_DESPAWN, 60000))
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp
index c22e61fda42..06e4859a931 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp
@@ -110,11 +110,11 @@ public:
     struct netherspite_infernalAI : public ScriptedAI
     {
         netherspite_infernalAI(Creature* creature) : ScriptedAI(creature),
-            HellfireTimer(0), CleanupTimer(0), malchezaar(0), point(NULL) { }
+            HellfireTimer(0), CleanupTimer(0), point(NULL) { }
 
         uint32 HellfireTimer;
         uint32 CleanupTimer;
-        uint64 malchezaar;
+        ObjectGuid malchezaar;
         InfernalPoint *point;
 
         void Reset() override { }
@@ -189,7 +189,6 @@ public:
             Initialize();
 
             instance = creature->GetInstanceScript();
-            memset(axes, 0, sizeof(axes));
         }
 
         void Initialize()
@@ -208,7 +207,7 @@ public:
 
             for (uint8 i = 0; i < 5; ++i)
             {
-                enfeeble_targets[i] = 0;
+                enfeeble_targets[i].Clear();
                 enfeeble_health[i] = 0;
             }
         }
@@ -225,12 +224,12 @@ public:
         uint32 AxesTargetSwitchTimer;
         uint32 InfernalCleanupTimer;
 
-        std::vector<uint64> infernals;
+        GuidVector infernals;
         std::vector<InfernalPoint*> positions;
 
-        uint64 axes[2];
-        uint64 enfeeble_targets[5];
-        uint32 enfeeble_health[5];
+        ObjectGuid axes[2];
+        ObjectGuid enfeeble_targets[5];
+        uint64 enfeeble_health[5];
 
         uint32 phase;
 
@@ -279,7 +278,7 @@ public:
         void InfernalCleanup()
         {
             //Infernal Cleanup
-            for (std::vector<uint64>::const_iterator itr = infernals.begin(); itr != infernals.end(); ++itr)
+            for (GuidVector::const_iterator itr = infernals.begin(); itr != infernals.end(); ++itr)
                 if (Unit* pInfernal = ObjectAccessor::GetUnit(*me, *itr))
                     if (pInfernal->IsAlive())
                     {
@@ -297,7 +296,7 @@ public:
                 Unit* axe = ObjectAccessor::GetUnit(*me, axes[i]);
                 if (axe && axe->IsAlive())
                     axe->Kill(axe);
-                axes[i] = 0;
+                axes[i].Clear();
             }
         }
 
@@ -350,7 +349,7 @@ public:
                 Unit* target = ObjectAccessor::GetUnit(*me, enfeeble_targets[i]);
                 if (target && target->IsAlive())
                     target->SetHealth(enfeeble_health[i]);
-                enfeeble_targets[i] = 0;
+                enfeeble_targets[i].Clear();
                 enfeeble_health[i] = 0;
             }
         }
@@ -576,11 +575,13 @@ public:
 
         void Cleanup(Creature* infernal, InfernalPoint *point)
         {
-            for (std::vector<uint64>::iterator itr = infernals.begin(); itr!= infernals.end(); ++itr)
-                if (*itr == infernal->GetGUID())
+            for (GuidVector::iterator itr = infernals.begin(); itr!= infernals.end(); ++itr)
             {
-                infernals.erase(itr);
-                break;
+                if (*itr == infernal->GetGUID())
+                {
+                    infernals.erase(itr);
+                    break;
+                }
             }
 
             positions.push_back(point);
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_terestian_illhoof.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_terestian_illhoof.cpp
index 6733ccb3f9f..db8b1327585 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_terestian_illhoof.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_terestian_illhoof.cpp
@@ -144,10 +144,10 @@ public:
 
         void Initialize()
         {
-            SacrificeGUID = 0;
+            SacrificeGUID.Clear();
         }
 
-        uint64 SacrificeGUID;
+        ObjectGuid SacrificeGUID;
 
         void Reset() override
         {
@@ -269,10 +269,8 @@ public:
     {
         boss_terestianAI(Creature* creature) : ScriptedAI(creature)
         {
-            Initialize();
-            for (uint8 i = 0; i < 2; ++i)
-                PortalGUID[i] = 0;
             instance = creature->GetInstanceScript();
+            Initialize();
         }
 
         void Initialize()
@@ -289,7 +287,7 @@ public:
 
         InstanceScript* instance;
 
-        uint64 PortalGUID[2];
+        ObjectGuid PortalGUID[2];
         uint8 PortalsCount;
 
         uint32 SacrificeTimer;
@@ -312,7 +310,7 @@ public:
                         pPortal->DespawnOrUnsummon();
                     }
 
-                    PortalGUID[i] = 0;
+                    PortalGUID[i].Clear();
                 }
             }
 
@@ -367,7 +365,7 @@ public:
                     if (Creature* pPortal = ObjectAccessor::GetCreature((*me), PortalGUID[i]))
                         pPortal->DespawnOrUnsummon();
 
-                    PortalGUID[i] = 0;
+                    PortalGUID[i].Clear();
                 }
             }
 
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/bosses_opera.cpp b/src/server/scripts/EasternKingdoms/Karazhan/bosses_opera.cpp
index 863bdd6db78..63d543568fb 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/bosses_opera.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/bosses_opera.cpp
@@ -250,11 +250,11 @@ public:
 
         void Initialize()
         {
-            DorotheeGUID = 0;
+            DorotheeGUID.Clear();
             YipTimer = 10000;
         }
 
-        uint64 DorotheeGUID;
+        ObjectGuid DorotheeGUID;
         uint32 YipTimer;
 
         void Reset() override
@@ -868,7 +868,7 @@ public:
             FearTimer = urand(25000, 35000);
             SwipeTimer = 5000;
 
-            HoodGUID = 0;
+            HoodGUID.Clear();
             TempThreat = 0;
 
             IsChasing = false;
@@ -880,7 +880,7 @@ public:
         uint32 FearTimer;
         uint32 SwipeTimer;
 
-        uint64 HoodGUID;
+        ObjectGuid HoodGUID;
         float TempThreat;
 
         bool IsChasing;
@@ -947,7 +947,7 @@ public:
 
                     if (Unit* target = ObjectAccessor::GetUnit(*me, HoodGUID))
                     {
-                        HoodGUID = 0;
+                        HoodGUID.Clear();
                         if (DoGetThreat(target))
                             DoModifyThreatPercent(target, -100);
                         me->AddThreat(target, TempThreat);
@@ -1073,7 +1073,7 @@ public:
 
         void Initialize()
         {
-            RomuloGUID = 0;
+            RomuloGUID.Clear();
             Phase = PHASE_JULIANNE;
 
             BlindingPassionTimer = 30000;
@@ -1093,7 +1093,7 @@ public:
         uint32 EntryYellTimer;
         uint32 AggroYellTimer;
 
-        uint64 RomuloGUID;
+        ObjectGuid RomuloGUID;
 
         uint32 Phase;
 
@@ -1197,7 +1197,7 @@ public:
 
         void Initialize()
         {
-            JulianneGUID = 0;
+            JulianneGUID.Clear();
             Phase = PHASE_ROMULO;
 
             BackwardLungeTimer = 15000;
@@ -1212,7 +1212,7 @@ public:
 
         InstanceScript* instance;
 
-        uint64 JulianneGUID;
+        ObjectGuid JulianneGUID;
         uint32 Phase;
 
         uint32 EntryYellTimer;
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp
index 57ad377b7fa..bae61f9b452 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp
@@ -548,7 +548,7 @@ public:
                 me->ModifyAuraState(AURA_STATE_HEALTHLESS_35_PERCENT, false);
                 me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                 me->ClearAllReactives();
-                me->SetTarget(0);
+                me->SetTarget(ObjectGuid::Empty);
                 me->GetMotionMaster()->Clear();
                 me->GetMotionMaster()->MoveIdle();
                 me->SetStandState(UNIT_STAND_STATE_DEAD);
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp
index a77dde7e219..9acf82c312e 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp
@@ -360,7 +360,6 @@ struct boss_priestess_lackey_commonAI : public ScriptedAI
     {
         Initialize();
         instance = creature->GetInstanceScript();
-        memset(&m_auiLackeyGUIDs, 0, sizeof(m_auiLackeyGUIDs));
         AcquireGUIDs();
     }
 
@@ -377,7 +376,7 @@ struct boss_priestess_lackey_commonAI : public ScriptedAI
 
     InstanceScript* instance;
 
-    uint64 m_auiLackeyGUIDs[MAX_ACTIVE_LACKEY];
+    ObjectGuid m_auiLackeyGUIDs[MAX_ACTIVE_LACKEY];
     uint32 ResetThreatTimer;
 
     bool UsedPotion;
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp
index 28f69a63299..c186470f2d5 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp
@@ -220,7 +220,7 @@ class boss_selin_fireheart : public CreatureScript
                             if (CrystalChosen && CrystalChosen->IsAlive())
                                 CrystalChosen->Kill(CrystalChosen);
 
-                            CrystalGUID = 0;
+                            CrystalGUID.Clear();
 
                             me->GetMotionMaster()->Clear();
                             me->GetMotionMaster()->MoveChase(me->GetVictim());
diff --git a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp
index 0733640f4c3..347cd2cfab2 100644
--- a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp
@@ -240,14 +240,14 @@ public:
         void Initialize()
         {
             Phase = 0;
-            bodyGUID = 0;
+            bodyGUID.Clear();
             die = false;
             withbody = true;
             wait = 1000;
             laugh = urand(15000, 30000);
         }
 
-        uint64 bodyGUID;
+        ObjectGuid bodyGUID;
 
         uint32 Phase;
         uint32 laugh;
@@ -390,8 +390,6 @@ public:
         {
             Initialize();
             instance = creature->GetInstanceScript();
-            headGUID = 0;
-            PlayerGUID = 0;
             id = 0;
             whirlwind = 0;
             wp_reached = false;
@@ -417,8 +415,8 @@ public:
 
         InstanceScript* instance;
 
-        uint64 headGUID;
-        uint64 PlayerGUID;
+        ObjectGuid headGUID;
+        ObjectGuid PlayerGUID;
 
         uint32 Phase;
         uint32 id;
@@ -446,9 +444,9 @@ public:
             if (headGUID)
             {
                 if (Creature* Head = ObjectAccessor::GetCreature((*me), headGUID))
-                    Head->DisappearAndDie();
+                    Head->DespawnOrUnsummon();
 
-                headGUID = 0;
+                headGUID.Clear();
             }
 
             me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_PC);
@@ -806,18 +804,17 @@ public:
         npc_pulsing_pumpkinAI(Creature* creature) : ScriptedAI(creature)
         {
             sprouted = false;
-            debuffGUID = 0;
         }
 
         bool sprouted;
-        uint64 debuffGUID;
+        ObjectGuid debuffGUID;
 
         void Reset() override
         {
             float x, y, z;
             me->GetPosition(x, y, z);   //this visual aura some under ground
             me->SetPosition(x, y, z + 0.35f, 0.0f);
-            debuffGUID = 0;
+            debuffGUID.Clear();
             Despawn();
             Creature* debuff = DoSpawnCreature(HELPER, 0, 0, 0, 0, TEMPSUMMON_TIMED_OR_CORPSE_DESPAWN, 14500);
             if (debuff)
@@ -857,7 +854,7 @@ public:
             if (debuff)
             {
                 debuff->SetVisible(false);
-                debuffGUID = 0;
+                debuffGUID.Clear();
             }
         }
 
diff --git a/src/server/scripts/EasternKingdoms/Stratholme/boss_order_of_silver_hand.cpp b/src/server/scripts/EasternKingdoms/Stratholme/boss_order_of_silver_hand.cpp
index 0a09bc85ea3..e855b7e676f 100644
--- a/src/server/scripts/EasternKingdoms/Stratholme/boss_order_of_silver_hand.cpp
+++ b/src/server/scripts/EasternKingdoms/Stratholme/boss_order_of_silver_hand.cpp
@@ -132,7 +132,7 @@ public:
             if (instance->GetData(TYPE_SH_QUEST))
             {
                 if (Player* player = killer->ToPlayer())
-                    player->KilledMonsterCredit(SH_QUEST_CREDIT, 0);
+                    player->KilledMonsterCredit(SH_QUEST_CREDIT);
             }
         }
 
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kalecgos.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kalecgos.cpp
index 419279c82ee..c8354bde428 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kalecgos.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kalecgos.cpp
@@ -115,7 +115,7 @@ public:
 
         void Initialize()
         {
-            SathGUID = 0;
+            SathGUID.Clear();
             ArcaneBuffetTimer = 8000;
             FrostBreathTimer = 15000;
             WildMagicTimer = 10000;
@@ -148,7 +148,7 @@ public:
         bool isBanished;
         bool bJustReset;
 
-        uint64 SathGUID;
+        ObjectGuid SathGUID;
 
         void Reset() override
         {
@@ -456,7 +456,7 @@ public:
         uint32 YellTimer;
         uint32 YellSequence;
 
-        uint64 SathGUID;
+        ObjectGuid SathGUID;
 
         bool isEnraged; // if demon is enraged
 
@@ -464,7 +464,6 @@ public:
         {
             Initialize();
             instance = creature->GetInstanceScript();
-            SathGUID = 0;
         }
 
         void Initialize()
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp
index f6217958346..9bddbcccf49 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp
@@ -742,7 +742,7 @@ public:
                                 for (uint8 z = 0; z < 6; ++z)
                                 {
                                     pRandomPlayer = SelectTarget(SELECT_TARGET_RANDOM, 0, 100, true);
-                                    if (!pRandomPlayer || !pRandomPlayer->HasAura(SPELL_VENGEANCE_OF_THE_BLUE_FLIGHT, 0))
+                                    if (!pRandomPlayer || !pRandomPlayer->HasAura(SPELL_VENGEANCE_OF_THE_BLUE_FLIGHT))
                                         break;
                                 }
 
@@ -835,7 +835,7 @@ public:
                             for (uint8 z = 0; z < 6; ++z)
                             {
                                 target = SelectTarget(SELECT_TARGET_RANDOM, 0, 100, true);
-                                if (!target || !target->HasAura(SPELL_VENGEANCE_OF_THE_BLUE_FLIGHT, 0)) break;
+                                if (!target || !target->HasAura(SPELL_VENGEANCE_OF_THE_BLUE_FLIGHT)) break;
                             }
                             if (target)
                             {
@@ -962,7 +962,7 @@ public:
                 return;
 
             // Gain Shadow Infusion at 20% health
-            if (HealthBelowPct(20) && !me->HasAura(SPELL_SHADOW_INFUSION, 0))
+            if (HealthBelowPct(20) && !me->HasAura(SPELL_SHADOW_INFUSION))
                 DoCast(me, SPELL_SHADOW_INFUSION, true);
 
             // Shadow Bolt Volley - Shoots Shadow Bolts at all enemies within 30 yards, for ~2k Shadow damage.
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp
index a14dc1d1f7f..99b710afb1e 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp
@@ -574,7 +574,7 @@ public:
                     case 2:
                         SpellTimer = 400;
                         NeedForAHack = 3;
-                        me->RemoveAura(SPELL_BLACKHOLE_GROW, 1);
+                        me->RemoveAura(SPELL_BLACKHOLE_GROW);
                         break;
                     case 3:
                         SpellTimer = urand(400, 900);
diff --git a/src/server/scripts/EasternKingdoms/ZulAman/boss_zuljin.cpp b/src/server/scripts/EasternKingdoms/ZulAman/boss_zuljin.cpp
index d15f9582460..dfb7f96ec4a 100644
--- a/src/server/scripts/EasternKingdoms/ZulAman/boss_zuljin.cpp
+++ b/src/server/scripts/EasternKingdoms/ZulAman/boss_zuljin.cpp
@@ -298,7 +298,7 @@ class boss_zuljin : public CreatureScript
                             temp->setDeathState(DEAD);
                         }
                     }
-                    SpiritGUID[i] = 0;
+                    SpiritGUID[i].Clear();
                 }
             }
 
@@ -464,7 +464,7 @@ class boss_zuljin : public CreatureScript
                                             Claw_Rage_Timer = urand(15000, 20000);
                                             me->SetSpeed(MOVE_RUN, 1.2f);
                                             AttackStart(ObjectAccessor::GetUnit(*me, TankGUID));
-                                            TankGUID = 0;
+                                            TankGUID.Clear();
                                             return;
                                         }
                                         else
@@ -512,7 +512,7 @@ class boss_zuljin : public CreatureScript
                                         Lynx_Rush_Timer = urand(15000, 20000);
                                         me->SetSpeed(MOVE_RUN, 1.2f);
                                         AttackStart(ObjectAccessor::GetUnit(*me, TankGUID));
-                                        TankGUID = 0;
+                                        TankGUID.Clear();
                                     }
                                     else
                                         AttackStart(SelectTarget(SELECT_TARGET_RANDOM, 0));
diff --git a/src/server/scripts/Kalimdor/OnyxiasLair/boss_onyxia.cpp b/src/server/scripts/Kalimdor/OnyxiasLair/boss_onyxia.cpp
index 1473b80a6c6..eec2a590bd4 100644
--- a/src/server/scripts/Kalimdor/OnyxiasLair/boss_onyxia.cpp
+++ b/src/server/scripts/Kalimdor/OnyxiasLair/boss_onyxia.cpp
@@ -140,8 +140,8 @@ public:
             MovePoint = urand(0, 5);
             PointData = GetMoveData();
             SummonWhelpCount = 0;
-            triggerGUID = 0;
-            tankGUID = 0;
+            triggerGUID.Clear();
+            tankGUID.Clear();
             IsMoving = false;
         }
 
@@ -474,8 +474,8 @@ public:
             uint8 Phase;
             uint8 MovePoint;
             uint8 SummonWhelpCount;
-            uint64 triggerGUID;
-            uint64 tankGUID;
+            ObjectGuid triggerGUID;
+            ObjectGuid tankGUID;
             bool IsMoving;
     };
 
diff --git a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ossirian.cpp b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ossirian.cpp
index 0180bbeddac..2ba755d3c4e 100644
--- a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ossirian.cpp
+++ b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ossirian.cpp
@@ -95,12 +95,12 @@ class boss_ossirian : public CreatureScript
             void Initialize()
             {
                 CrystalIterator = 0;
-                TriggerGUID = 0;
-                CrystalGUID = 0;
+                TriggerGUID.Clear();
+                CrystalGUID.Clear();
             }
 
-            uint64 TriggerGUID;
-            uint64 CrystalGUID;
+            ObjectGuid TriggerGUID;
+            ObjectGuid CrystalGUID;
             uint8 CrystalIterator;
             bool SaidIntro;
 
diff --git a/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_jedoga_shadowseeker.cpp b/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_jedoga_shadowseeker.cpp
index e42ba39ffc5..4cb401a6e16 100644
--- a/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_jedoga_shadowseeker.cpp
+++ b/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_jedoga_shadowseeker.cpp
@@ -107,8 +107,8 @@ public:
             if (!bFirstTime)
                 instance->SetBossState(DATA_JEDOGA_SHADOWSEEKER, FAIL);
 
-            instance->SetGuidData(DATA_PL_JEDOGA_TARGET, 0);
-            instance->SetGuidData(DATA_ADD_JEDOGA_OPFER, 0);
+            instance->SetGuidData(DATA_PL_JEDOGA_TARGET, ObjectGuid::Empty);
+            instance->SetGuidData(DATA_ADD_JEDOGA_OPFER, ObjectGuid::Empty);
             instance->SetData(DATA_JEDOGA_RESET_INITIANDS, 0);
             MoveUp();
 
@@ -248,13 +248,14 @@ public:
 
         void OpferRufen()
         {
-            uint64 opfer = instance->GetGuidData(DATA_ADD_JEDOGA_INITIAND);
+            ObjectGuid opfer = instance->GetGuidData(DATA_ADD_JEDOGA_INITIAND);
 
             if (opfer)
             {
                 Talk(TEXT_SACRIFICE_1);
                 instance->SetGuidData(DATA_ADD_JEDOGA_OPFER, opfer);
-            } else
+            }
+            else
                 bCanDown = true;
         }
 
@@ -389,7 +390,7 @@ public:
                         boss->AI()->DoAction(ACTION_INITIAND_KILLED);
                 }
 
-                instance->SetGuidData(DATA_ADD_JEDOGA_OPFER, 0);
+                instance->SetGuidData(DATA_ADD_JEDOGA_OPFER, ObjectGuid::Empty);
 
                 bWalking = false;
             }
diff --git a/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_prince_taldaram.cpp b/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_prince_taldaram.cpp
index 637bdd71455..cf80f21d290 100644
--- a/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_prince_taldaram.cpp
+++ b/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_prince_taldaram.cpp
@@ -88,16 +88,14 @@ class boss_prince_taldaram : public CreatureScript
             boss_prince_taldaramAI(Creature* creature) : BossAI(creature, DATA_PRINCE_TALDARAM)
             {
                 me->SetDisableGravity(true);
-                _flameSphereTargetGUID = 0;
-                _embraceTargetGUID = 0;
                 _embraceTakenDamage = 0;
             }
 
             void Reset() override
             {
                 _Reset();
-                _flameSphereTargetGUID = 0;
-                _embraceTargetGUID = 0;
+                _flameSphereTargetGUID.Clear();
+                _embraceTargetGUID.Clear();
                 _embraceTakenDamage = 0;
             }
 
@@ -194,7 +192,7 @@ class boss_prince_taldaram : public CreatureScript
                             events.ScheduleEvent(EVENT_FEEDING, 20000);
                             break;
                         case EVENT_FEEDING:
-                            _embraceTargetGUID = 0;
+                            _embraceTargetGUID.Clear();
                             break;
                         default:
                             break;
@@ -213,7 +211,7 @@ class boss_prince_taldaram : public CreatureScript
                     _embraceTakenDamage += damage;
                     if (_embraceTakenDamage > DUNGEON_MODE<uint32>(DATA_EMBRACE_DMG, H_DATA_EMBRACE_DMG))
                     {
-                        _embraceTargetGUID = 0;
+                        _embraceTargetGUID.Clear();
                         me->CastStop();
                     }
                 }
@@ -231,7 +229,7 @@ class boss_prince_taldaram : public CreatureScript
                     return;
 
                 if (victim->GetGUID() == _embraceTargetGUID)
-                    _embraceTargetGUID = 0;
+                    _embraceTargetGUID.Clear();
 
                 Talk(SAY_SLAY);
             }
@@ -267,8 +265,8 @@ class boss_prince_taldaram : public CreatureScript
             }
 
         private:
-            uint64 _flameSphereTargetGUID;
-            uint64 _embraceTargetGUID;
+            ObjectGuid _flameSphereTargetGUID;
+            ObjectGuid _embraceTargetGUID;
             uint32 _embraceTakenDamage;
         };
 
@@ -288,7 +286,6 @@ class npc_prince_taldaram_flame_sphere : public CreatureScript
         {
             npc_prince_taldaram_flame_sphereAI(Creature* creature) : ScriptedAI(creature)
             {
-                _flameSphereTargetGUID = 0;
             }
 
             void Reset() override
@@ -296,7 +293,7 @@ class npc_prince_taldaram_flame_sphere : public CreatureScript
                 DoCast(me, SPELL_FLAME_SPHERE_SPAWN_EFFECT, true);
                 DoCast(me, SPELL_FLAME_SPHERE_VISUAL, true);
 
-                _flameSphereTargetGUID = 0;
+                _flameSphereTargetGUID.Clear();
                 _events.Reset();
                 _events.ScheduleEvent(EVENT_START_MOVE, 3 * IN_MILLISECONDS);
                 _events.ScheduleEvent(EVENT_DESPAWN, 13 * IN_MILLISECONDS);
diff --git a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_halion.cpp b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_halion.cpp
index 65cd229e163..5a1e2adfe06 100644
--- a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_halion.cpp
+++ b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_halion.cpp
@@ -1116,7 +1116,7 @@ class npc_combustion_consumption : public CreatureScript
         struct npc_combustion_consumptionAI : public ScriptedAI
         {
             npc_combustion_consumptionAI(Creature* creature) : ScriptedAI(creature),
-                   _instance(creature->GetInstanceScript()), _summonerGuid(0)
+                   _instance(creature->GetInstanceScript())
             {
                 SetCombatMovement(false);
 
@@ -1171,7 +1171,7 @@ class npc_combustion_consumption : public CreatureScript
             InstanceScript* _instance;
             uint32 _explosionSpell;
             uint32 _damageSpell;
-            uint64 _summonerGuid;
+            ObjectGuid _summonerGuid;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -1394,7 +1394,7 @@ class spell_halion_combustion_consumption : public SpellScriptLoader
                     return;
 
                 if (GetTarget()->HasAura(_markSpell))
-                    GetTarget()->RemoveAurasDueToSpell(_markSpell, 0, 0, AURA_REMOVE_BY_EXPIRE);
+                    GetTarget()->RemoveAurasDueToSpell(_markSpell, ObjectGuid::Empty, 0, AURA_REMOVE_BY_EXPIRE);
             }
 
             void OnApply(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
@@ -1455,7 +1455,7 @@ class spell_halion_marks : public SpellScriptLoader
 
                 if (Unit* dispelledUnit = GetUnitOwner())
                     if (dispelledUnit->HasAura(_removeSpellId))
-                        dispelledUnit->RemoveAurasDueToSpell(_removeSpellId, 0, 0, AURA_REMOVE_BY_EXPIRE);
+                        dispelledUnit->RemoveAurasDueToSpell(_removeSpellId, ObjectGuid::Empty, 0, AURA_REMOVE_BY_EXPIRE);
             }
 
             void OnRemove(AuraEffect const* aurEff, AuraEffectHandleModes /*mode*/)
@@ -1558,7 +1558,7 @@ class spell_halion_twilight_realm_handlers : public SpellScriptLoader
                 if (!target)
                     return;
 
-                target->RemoveAurasDueToSpell(_beforeHitSpellId, 0, 0, AURA_REMOVE_BY_ENEMY_SPELL);
+                target->RemoveAurasDueToSpell(_beforeHitSpellId, ObjectGuid::Empty, 0, AURA_REMOVE_BY_ENEMY_SPELL);
                 if (InstanceScript* instance = target->GetInstanceScript())
                     instance->SendEncounterUnit(ENCOUNTER_FRAME_UNK7);
             }
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_grand_champions.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_grand_champions.cpp
index 1a0c1c53af9..7e83c24e0dd 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_grand_champions.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_grand_champions.cpp
@@ -208,7 +208,7 @@ public:
             }
 
             if (uiType <= 3)
-                Start(false, true, 0, NULL);
+                Start(false, true);
         }
 
         void WaypointReached(uint32 waypointId) override
@@ -769,7 +769,7 @@ public:
             uiMultiShotTimer = 0;
             uiLightningArrowsTimer = 7000;
 
-            uiTargetGUID = 0;
+            uiTargetGUID.Clear();
 
             bShoot = false;
         }
@@ -783,7 +783,7 @@ public:
         uint32 uiMultiShotTimer;
         uint32 uiLightningArrowsTimer;
 
-        uint64 uiTargetGUID;
+        ObjectGuid uiTargetGUID;
 
         bool bShoot;
         bool bDone;
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_faction_champions.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_faction_champions.cpp
index 094d4f5efa6..562e67f4b6a 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_faction_champions.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_faction_champions.cpp
@@ -483,7 +483,7 @@ class boss_toc_champion_controller : public CreatureScript
                         SummonChampions((Team)uiData);
                         break;
                     case 1:
-                        for (std::list<uint64>::iterator i = _summons.begin(); i != _summons.end(); ++i)
+                        for (SummonList::iterator i = _summons.begin(); i != _summons.end(); ++i)
                         {
                             if (Creature* temp = ObjectAccessor::GetCreature(*me, *i))
                             {
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_northrend_beasts.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_northrend_beasts.cpp
index 9a72f2cc7ef..771151632ff 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_northrend_beasts.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_northrend_beasts.cpp
@@ -294,7 +294,6 @@ class npc_snobold_vassal : public CreatureScript
         {
             npc_snobold_vassalAI(Creature* creature) : ScriptedAI(creature)
             {
-                _targetGUID = 0;
                 _targetDied = false;
                 _instance = creature->GetInstanceScript();
                 _instance->SetData(DATA_SNOBOLD_COUNT, INCREASE);
@@ -305,7 +304,7 @@ class npc_snobold_vassal : public CreatureScript
                 _events.ScheduleEvent(EVENT_BATTER, 5*IN_MILLISECONDS);
                 _events.ScheduleEvent(EVENT_HEAD_CRACK, 25*IN_MILLISECONDS);
 
-                _targetGUID = 0;
+                _targetGUID.Clear();
                 _targetDied = false;
 
                 //Workaround for Snobold
@@ -442,7 +441,7 @@ class npc_snobold_vassal : public CreatureScript
             private:
                 EventMap _events;
                 InstanceScript* _instance;
-                uint64 _targetGUID;
+                ObjectGuid _targetGUID;
                 bool   _targetDied;
         };
 
@@ -877,7 +876,7 @@ class boss_icehowl : public CreatureScript
                 _movementStarted = false;
                 _movementFinish = false;
                 _trampleCast = false;
-                _trampleTargetGUID = 0;
+                _trampleTargetGUID.Clear();
                 _trampleTargetX = 0;
                 _trampleTargetY = 0;
                 _trampleTargetZ = 0;
@@ -1077,7 +1076,7 @@ class boss_icehowl : public CreatureScript
                         if (Player* target = ObjectAccessor::GetPlayer(*me, _trampleTargetGUID))
                             Talk(EMOTE_TRAMPLE_START, target);
                         me->GetMotionMaster()->MoveCharge(_trampleTargetX, _trampleTargetY, _trampleTargetZ, 42, 1);
-                        me->SetTarget(0);
+                        me->SetTarget(ObjectGuid::Empty);
                         _stage = 5;
                         break;
                     case 5:
@@ -1134,7 +1133,7 @@ class boss_icehowl : public CreatureScript
 
             private:
                 float  _trampleTargetX, _trampleTargetY, _trampleTargetZ;
-                uint64 _trampleTargetGUID;
+                ObjectGuid _trampleTargetGUID;
                 bool   _movementStarted;
                 bool   _movementFinish;
                 bool   _trampleCast;
diff --git a/src/server/scripts/Northrend/DraktharonKeep/boss_novos.cpp b/src/server/scripts/Northrend/DraktharonKeep/boss_novos.cpp
index 0b504b2070f..6c3b4378bec 100644
--- a/src/server/scripts/Northrend/DraktharonKeep/boss_novos.cpp
+++ b/src/server/scripts/Northrend/DraktharonKeep/boss_novos.cpp
@@ -216,7 +216,7 @@ public:
         void SetSummonerStatus(bool active)
         {
             for (uint8 i = 0; i < 4; i++)
-                if (uint64 guid = instance->GetGuidData(summoners[i].data))
+                if (ObjectGuid guid = instance->GetGuidData(summoners[i].data))
                     if (Creature* crystalChannelTarget = ObjectAccessor::GetCreature(*me, guid))
                     {
                         if (active)
@@ -229,7 +229,7 @@ public:
         void SetCrystalsStatus(bool active)
         {
             for (uint8 i = 0; i < 4; i++)
-                if (uint64 guid = instance->GetGuidData(DATA_NOVOS_CRYSTAL_1 + i))
+                if (ObjectGuid guid = instance->GetGuidData(DATA_NOVOS_CRYSTAL_1 + i))
                     if (GameObject* crystal = ObjectAccessor::GetGameObject(*me, guid))
                         SetCrystalStatus(crystal, active);
         }
@@ -249,7 +249,7 @@ public:
         void CrystalHandlerDied()
         {
             for (uint8 i = 0; i < 4; i++)
-                if (uint64 guid = instance->GetGuidData(DATA_NOVOS_CRYSTAL_1 + i))
+                if (ObjectGuid guid = instance->GetGuidData(DATA_NOVOS_CRYSTAL_1 + i))
                     if (GameObject* crystal = ObjectAccessor::GetGameObject(*me, guid))
                         if (crystal->GetGoState() == GO_STATE_ACTIVE)
                         {
@@ -266,7 +266,7 @@ public:
                 if (IsHeroic())
                     events.ScheduleEvent(EVENT_SUMMON_MINIONS, 15000);
             }
-            else if (uint64 guid = instance->GetGuidData(DATA_NOVOS_SUMMONER_4))
+            else if (ObjectGuid guid = instance->GetGuidData(DATA_NOVOS_SUMMONER_4))
                 if (Creature* crystalChannelTarget = ObjectAccessor::GetCreature(*me, guid))
                     crystalChannelTarget->AI()->SetData(SPELL_SUMMON_CRYSTAL_HANDLER, 15000);
         }
@@ -330,7 +330,7 @@ public:
         void JustSummoned(Creature* summon) override
         {
             if (InstanceScript* instance = me->GetInstanceScript())
-                if (uint64 guid = instance->GetGuidData(DATA_NOVOS))
+                if (ObjectGuid guid = instance->GetGuidData(DATA_NOVOS))
                     if (Creature* novos = ObjectAccessor::GetCreature(*me, guid))
                         novos->AI()->JustSummoned(summon);
 
diff --git a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_krickandick.cpp b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_krickandick.cpp
index feb178dec26..327ea2c9b7b 100644
--- a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_krickandick.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_krickandick.cpp
@@ -293,8 +293,8 @@ class boss_krick : public CreatureScript
             void Initialize()
             {
                 _phase = PHASE_COMBAT;
-                _outroNpcGUID = 0;
-                _tyrannusGUID = 0;
+                _outroNpcGUID.Clear();
+                _tyrannusGUID.Clear();
             }
 
             void Reset() override
@@ -494,8 +494,8 @@ class boss_krick : public CreatureScript
             EventMap _events;
 
             KrickPhase _phase;
-            uint64 _outroNpcGUID;
-            uint64 _tyrannusGUID;
+            ObjectGuid _outroNpcGUID;
+            ObjectGuid _tyrannusGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
diff --git a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_scourgelord_tyrannus.cpp b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_scourgelord_tyrannus.cpp
index 81d80dc55d4..c2b1b91a200 100644
--- a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_scourgelord_tyrannus.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_scourgelord_tyrannus.cpp
@@ -299,7 +299,7 @@ class boss_rimefang : public CreatureScript
             void Initialize()
             {
                 _currentWaypoint = 0;
-                _hoarfrostTargetGUID = 0;
+                _hoarfrostTargetGUID.Clear();
             }
 
             void Reset() override
@@ -366,7 +366,7 @@ class boss_rimefang : public CreatureScript
                             if (Unit* target = ObjectAccessor::GetUnit(*me, _hoarfrostTargetGUID))
                             {
                                 DoCast(target, SPELL_HOARFROST);
-                                _hoarfrostTargetGUID = 0;
+                                _hoarfrostTargetGUID.Clear();
                             }
                             break;
                         default:
@@ -377,7 +377,7 @@ class boss_rimefang : public CreatureScript
 
         private:
             Vehicle* _vehicle;
-            uint64 _hoarfrostTargetGUID;
+            ObjectGuid _hoarfrostTargetGUID;
             EventMap _events;
             uint8 _currentWaypoint;
         };
@@ -391,7 +391,7 @@ class boss_rimefang : public CreatureScript
 class player_overlord_brandAI : public PlayerAI
 {
     public:
-        player_overlord_brandAI(Player* player, uint64 casterGUID) : PlayerAI(player), _tyrannusGUID(casterGUID) { }
+        player_overlord_brandAI(Player* player, ObjectGuid casterGUID) : PlayerAI(player), _tyrannusGUID(casterGUID) { }
 
         void DamageDealt(Unit* /*victim*/, uint32& damage, DamageEffectType /*damageType*/) override
         {
@@ -409,7 +409,7 @@ class player_overlord_brandAI : public PlayerAI
         void UpdateAI(uint32 /*diff*/) override { }
 
     private:
-        uint64 _tyrannusGUID;
+        ObjectGuid _tyrannusGUID;
 };
 
 class spell_tyrannus_overlord_brand : public SpellScriptLoader
diff --git a/src/server/scripts/Northrend/Gundrak/boss_gal_darah.cpp b/src/server/scripts/Northrend/Gundrak/boss_gal_darah.cpp
index 22e7ac280fd..992de8c5402 100644
--- a/src/server/scripts/Northrend/Gundrak/boss_gal_darah.cpp
+++ b/src/server/scripts/Northrend/Gundrak/boss_gal_darah.cpp
@@ -104,7 +104,7 @@ public:
         uint32 uiImpalingChargeTimer;
         uint32 uiStompTimer;
         uint32 uiTransformationTimer;
-        std::list<uint64> impaledList;
+        GuidList impaledList;
         uint8 shareTheLove;
 
         CombatPhase Phase;
@@ -247,10 +247,10 @@ public:
         }
 
         // 5 UNIQUE party members
-        void CheckAchievement(uint64 guid)
+        void CheckAchievement(ObjectGuid guid)
         {
             bool playerExists = false;
-            for (std::list<uint64>::iterator itr = impaledList.begin(); itr != impaledList.end(); ++itr)
+            for (GuidList::iterator itr = impaledList.begin(); itr != impaledList.end(); ++itr)
                 if (guid != *itr)
                     playerExists = true;
 
diff --git a/src/server/scripts/Northrend/Gundrak/boss_slad_ran.cpp b/src/server/scripts/Northrend/Gundrak/boss_slad_ran.cpp
index 998ce64f08a..6c247b08097 100644
--- a/src/server/scripts/Northrend/Gundrak/boss_slad_ran.cpp
+++ b/src/server/scripts/Northrend/Gundrak/boss_slad_ran.cpp
@@ -103,7 +103,7 @@ public:
 
         uint8 uiPhase;
 
-        std::set<uint64> lWrappedPlayers;
+        GuidSet lWrappedPlayers;
         SummonList lSummons;
 
         InstanceScript* instance;
@@ -205,7 +205,7 @@ public:
                 lWrappedPlayers.insert(guid);
         }
 
-        bool WasWrapped(uint64 guid)
+        bool WasWrapped(ObjectGuid guid)
         {
             return lWrappedPlayers.count(guid) != 0;
         }
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp
index eecbe778d25..b1f6a4a5e83 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp
@@ -88,7 +88,6 @@ class boss_festergut : public CreatureScript
             {
                 _maxInoculatedStack = 0;
                 _inhaleCounter = 0;
-                _gasDummyGUID = 0;
             }
 
             void Reset() override
@@ -279,7 +278,7 @@ class boss_festergut : public CreatureScript
             }
 
         private:
-            uint64 _gasDummyGUID;
+            ObjectGuid _gasDummyGUID;
             uint32 _maxInoculatedStack;
             uint32 _inhaleCounter;
         };
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_icecrown_gunship_battle.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_icecrown_gunship_battle.cpp
index de3e3a360ac..74a09887dd2 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_icecrown_gunship_battle.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_icecrown_gunship_battle.cpp
@@ -383,7 +383,9 @@ public:
     void ResetSlots(uint32 team)
     {
         _transport = NULL;
-        memset(_controlledSlots, 0, sizeof(uint64)* MAX_SLOTS);
+        for (uint32 i = 0; i < MAX_SLOTS; ++i)
+            _controlledSlots[i].Clear();
+
         memset(_respawnCooldowns, 0, sizeof(time_t)* MAX_SLOTS);
         _spawnPoint = team == HORDE ? &OrgrimsHammerAddsSpawnPos : &SkybreakerAddsSpawnPos;
         _slotInfo = team == HORDE ? OrgrimsHammerSlotInfo : SkybreakerSlotInfo;
@@ -422,7 +424,7 @@ public:
 
     void ClearSlot(PassengerSlots slot)
     {
-        _controlledSlots[slot] = 0;
+        _controlledSlots[slot].Clear();
         _respawnCooldowns[slot] = time(NULL) + _slotInfo[slot].Cooldown;
     }
 
@@ -448,7 +450,7 @@ private:
     }
 
     Transport* _transport;
-    uint64 _controlledSlots[MAX_SLOTS];
+    ObjectGuid _controlledSlots[MAX_SLOTS];
     time_t _respawnCooldowns[MAX_SLOTS];
     Position const* _spawnPoint;
     SlotInfo const* _slotInfo;
@@ -482,7 +484,7 @@ private:
 class ResetEncounterEvent : public BasicEvent
 {
 public:
-    ResetEncounterEvent(Unit* caster, uint32 spellId, uint64 otherTransport) : _caster(caster), _spellId(spellId), _otherTransport(otherTransport) { }
+    ResetEncounterEvent(Unit* caster, uint32 spellId, ObjectGuid otherTransport) : _caster(caster), _spellId(spellId), _otherTransport(otherTransport) { }
 
     bool Execute(uint64, uint32) override
     {
@@ -498,7 +500,7 @@ public:
 private:
     Unit* _caster;
     uint32 _spellId;
-    uint64 _otherTransport;
+    ObjectGuid _otherTransport;
 };
 
 class BattleExperienceEvent : public BasicEvent
@@ -801,7 +803,7 @@ class npc_gunship : public CreatureScript
                 if (id != ACTION_SHIP_VISITS)
                     return;
 
-                std::map<uint64, uint32>::iterator itr = _shipVisits.find(guid);
+                std::map<ObjectGuid, uint32>::iterator itr = _shipVisits.find(guid);
                 if (itr == _shipVisits.end())
                     _shipVisits[guid] = 1;
                 else
@@ -814,7 +816,7 @@ class npc_gunship : public CreatureScript
                     return 0;
 
                 uint32 max = 0;
-                for (std::map<uint64, uint32>::const_iterator itr = _shipVisits.begin(); itr != _shipVisits.end(); ++itr)
+                for (std::map<ObjectGuid, uint32>::const_iterator itr = _shipVisits.begin(); itr != _shipVisits.end(); ++itr)
                     max = std::max(max, itr->second);
 
                 return max;
@@ -822,7 +824,7 @@ class npc_gunship : public CreatureScript
 
         private:
             uint32 _teamInInstance;
-            std::map<uint64, uint32> _shipVisits;
+            std::map<ObjectGuid, uint32> _shipVisits;
             bool _summonedFirstMage;
             bool _died;
         };
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_lady_deathwhisper.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_lady_deathwhisper.cpp
index 3a7bb771c79..55d6edd7b2d 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_lady_deathwhisper.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_lady_deathwhisper.cpp
@@ -224,8 +224,8 @@ class boss_lady_deathwhisper : public CreatureScript
             void Initialize()
             {
                 _waveCounter = 0;
-                _nextVengefulShadeTargetGUID = 0;
-                _darnavanGUID = 0;
+                _nextVengefulShadeTargetGUID.Clear();
+                _darnavanGUID.Clear();
             }
 
             void Reset() override
@@ -329,10 +329,10 @@ class boss_lady_deathwhisper : public CreatureScript
                             {
                                 for (GroupReference* itr = group->GetFirstMember(); itr != NULL; itr = itr->next())
                                     if (Player* member = itr->GetSource())
-                                        member->KilledMonsterCredit(NPC_DARNAVAN_CREDIT, 0);
+                                        member->KilledMonsterCredit(NPC_DARNAVAN_CREDIT);
                             }
                             else
-                                owner->KilledMonsterCredit(NPC_DARNAVAN_CREDIT, 0);
+                                owner->KilledMonsterCredit(NPC_DARNAVAN_CREDIT);
                         }
                     }
                 }
@@ -349,7 +349,7 @@ class boss_lady_deathwhisper : public CreatureScript
                 if (Creature* darnavan = ObjectAccessor::GetCreature(*me, _darnavanGUID))
                 {
                     darnavan->DespawnOrUnsummon();
-                    _darnavanGUID = 0;
+                    _darnavanGUID.Clear();
                 }
             }
 
@@ -396,7 +396,7 @@ class boss_lady_deathwhisper : public CreatureScript
                 if (summon->GetEntry() == NPC_VENGEFUL_SHADE)
                 {
                     target = ObjectAccessor::GetUnit(*me, _nextVengefulShadeTargetGUID);   // Vengeful Shade
-                    _nextVengefulShadeTargetGUID = 0;
+                    _nextVengefulShadeTargetGUID.Clear();
                 }
                 else
                     target = SelectTarget(SELECT_TARGET_RANDOM);                        // Wave adds
@@ -568,7 +568,7 @@ class boss_lady_deathwhisper : public CreatureScript
                 if (_reanimationQueue.empty())
                     return;
 
-                uint64 cultistGUID = _reanimationQueue.front();
+                ObjectGuid cultistGUID = _reanimationQueue.front();
                 Creature* cultist = ObjectAccessor::GetCreature(*me, cultistGUID);
                 _reanimationQueue.pop_front();
                 if (!cultist)
@@ -615,9 +615,9 @@ class boss_lady_deathwhisper : public CreatureScript
             }
 
         private:
-            uint64 _nextVengefulShadeTargetGUID;
-            uint64 _darnavanGUID;
-            std::deque<uint64> _reanimationQueue;
+            ObjectGuid _nextVengefulShadeTargetGUID;
+            ObjectGuid _darnavanGUID;
+            GuidDeque _reanimationQueue;
             uint32 _waveCounter;
             uint8 const _dominateMindCount;
             bool _introDone;
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
index a8fa6dc1b3c..7ab8c956757 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
@@ -133,7 +133,6 @@ class boss_lord_marrowgar : public CreatureScript
                 _coldflameLastPos.Relocate(creature);
                 _introDone = false;
                 _boneSlice = false;
-                _coldflameTarget = 0;
             }
 
             void Reset() override
@@ -211,7 +210,7 @@ class boss_lord_marrowgar : public CreatureScript
                             break;
                         case EVENT_COLDFLAME:
                             _coldflameLastPos.Relocate(me);
-                            _coldflameTarget = 0LL;
+                            _coldflameTarget.Clear();
                             if (!me->HasAura(SPELL_BONE_STORM))
                                 DoCastAOE(SPELL_COLDFLAME_NORMAL);
                             else
@@ -307,7 +306,7 @@ class boss_lord_marrowgar : public CreatureScript
                     }
                 }
 
-                return 0LL;
+                return ObjectGuid::Empty;
             }
 
             void SetGUID(ObjectGuid guid, int32 type /*= 0 */) override
@@ -333,8 +332,8 @@ class boss_lord_marrowgar : public CreatureScript
 
         private:
             Position _coldflameLastPos;
-            std::vector<uint64> _boneSpikeImmune;
-            uint64 _coldflameTarget;
+            GuidVector _boneSpikeImmune;
+            ObjectGuid _coldflameTarget;
             uint32 _boneStormDuration;
             float _baseSpeed;
             bool _introDone;
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
index 2d69e8c0ac4..2e353e5f9dc 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
@@ -174,7 +174,7 @@ class AbominationDespawner
     public:
         explicit AbominationDespawner(Unit* owner) : _owner(owner) { }
 
-        bool operator()(uint64 guid)
+        bool operator()(ObjectGuid guid)
         {
             if (Unit* summon = ObjectAccessor::GetUnit(*_owner, guid))
             {
@@ -702,7 +702,7 @@ class boss_professor_putricide : public CreatureScript
                 events.SetPhase(newPhase);
             }
 
-            uint64 _oozeFloodDummyGUIDs[4];
+            ObjectGuid _oozeFloodDummyGUIDs[4];
             Phases _phase;          // external of EventMap because event phase gets reset on evade
             float const _baseSpeed;
             uint8 _oozeFloodStage;
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp
index 97c304510bc..205b90fa159 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp
@@ -469,7 +469,7 @@ class spell_rotface_ooze_flood : public SpellScriptLoader
                     return;
 
                 triggers.sort(Trinity::ObjectDistanceOrderPred(GetHitUnit()));
-                GetHitUnit()->CastSpell(triggers.back(), uint32(GetEffectValue()), false, NULL, NULL, GetOriginalCaster() ? GetOriginalCaster()->GetGUID() : 0);
+                GetHitUnit()->CastSpell(triggers.back(), uint32(GetEffectValue()), false, NULL, NULL, GetOriginalCaster() ? GetOriginalCaster()->GetGUID() : ObjectGuid::Empty);
             }
 
             void FilterTargets(std::list<WorldObject*>& targets)
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp
index cb8fa6a2bf6..551ec9ad0a2 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp
@@ -182,7 +182,7 @@ class FrostwyrmLandEvent : public BasicEvent
 class FrostBombExplosion : public BasicEvent
 {
     public:
-        FrostBombExplosion(Creature* owner, uint64 sindragosaGUID) : _owner(owner), _sindragosaGUID(sindragosaGUID) { }
+        FrostBombExplosion(Creature* owner, ObjectGuid sindragosaGUID) : _owner(owner), _sindragosaGUID(sindragosaGUID) { }
 
         bool Execute(uint64 /*eventTime*/, uint32 /*updateTime*/)
         {
@@ -193,7 +193,7 @@ class FrostBombExplosion : public BasicEvent
 
     private:
         Creature* _owner;
-        uint64 _sindragosaGUID;
+        ObjectGuid _sindragosaGUID;
 };
 
 class FrostBeaconSelector
@@ -563,7 +563,6 @@ class npc_ice_tomb : public CreatureScript
         {
             npc_ice_tombAI(Creature* creature) : ScriptedAI(creature)
             {
-                _trappedPlayerGUID = 0;
                 _existenceCheckTimer = 0;
                 SetCombatMovement(false);
             }
@@ -595,7 +594,7 @@ class npc_ice_tomb : public CreatureScript
 
                 if (Player* player = ObjectAccessor::GetPlayer(*me, _trappedPlayerGUID))
                 {
-                    _trappedPlayerGUID = 0;
+                    _trappedPlayerGUID.Clear();
                     player->RemoveAurasDueToSpell(SPELL_ICE_TOMB_DAMAGE);
                     player->RemoveAurasDueToSpell(SPELL_ASPHYXIATION);
                 }
@@ -623,7 +622,7 @@ class npc_ice_tomb : public CreatureScript
             }
 
         private:
-            uint64 _trappedPlayerGUID;
+            ObjectGuid _trappedPlayerGUID;
             uint32 _existenceCheckTimer;
         };
 
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_the_lich_king.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_the_lich_king.cpp
index 36bf874b9ea..5addfd672b4 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_the_lich_king.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_the_lich_king.cpp
@@ -1433,7 +1433,7 @@ class npc_valkyr_shadowguard : public CreatureScript
         struct npc_valkyr_shadowguardAI : public ScriptedAI
         {
             npc_valkyr_shadowguardAI(Creature* creature) : ScriptedAI(creature),
-                _grabbedPlayer(0), _instance(creature->GetInstanceScript())
+                _instance(creature->GetInstanceScript())
             {
             }
 
@@ -1563,7 +1563,7 @@ class npc_valkyr_shadowguard : public CreatureScript
         private:
             EventMap _events;
             Position _dropPoint;
-            uint64 _grabbedPlayer;
+            ObjectGuid _grabbedPlayer;
             InstanceScript* _instance;
         };
 
@@ -1640,7 +1640,7 @@ class npc_strangulate_vehicle : public CreatureScript
                                     else
                                     {
                                         summoner->CastSpell(summoner, SPELL_HARVEST_SOULS_TELEPORT, true);
-                                        summoner->RemoveAurasDueToSpell(HARVEST_SOUL, 0, 0, AURA_REMOVE_BY_EXPIRE);
+                                        summoner->RemoveAurasDueToSpell(HARVEST_SOUL, ObjectGuid::Empty, 0, AURA_REMOVE_BY_EXPIRE);
                                     }
                                 }
                             }
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_valithria_dreamwalker.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_valithria_dreamwalker.cpp
index 41a99d66c8f..5b3dd67072a 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_valithria_dreamwalker.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_valithria_dreamwalker.cpp
@@ -175,7 +175,7 @@ struct ManaVoidSelector : public std::unary_function<Unit*, bool>
 class DelayedCastEvent : public BasicEvent
 {
     public:
-        DelayedCastEvent(Creature* trigger, uint32 spellId, uint64 originalCaster, uint32 despawnTime) : _trigger(trigger), _originalCaster(originalCaster), _spellId(spellId), _despawnTime(despawnTime)
+        DelayedCastEvent(Creature* trigger, uint32 spellId, ObjectGuid originalCaster, uint32 despawnTime) : _trigger(trigger), _originalCaster(originalCaster), _spellId(spellId), _despawnTime(despawnTime)
         {
         }
 
@@ -189,7 +189,7 @@ class DelayedCastEvent : public BasicEvent
 
     private:
         Creature* _trigger;
-        uint64 _originalCaster;
+        ObjectGuid _originalCaster;
         uint32 _spellId;
         uint32 _despawnTime;
 };
@@ -742,7 +742,7 @@ class npc_risen_archmage : public CreatureScript
             void JustSummoned(Creature* summon) override
             {
                 if (summon->GetEntry() == NPC_COLUMN_OF_FROST)
-                    summon->m_Events.AddEvent(new DelayedCastEvent(summon, SPELL_COLUMN_OF_FROST_DAMAGE, 0, 8000), summon->m_Events.CalculateTime(2000));
+                    summon->m_Events.AddEvent(new DelayedCastEvent(summon, SPELL_COLUMN_OF_FROST_DAMAGE, ObjectGuid::Empty, 8000), summon->m_Events.CalculateTime(2000));
                 else if (summon->GetEntry() == NPC_MANA_VOID)
                     summon->DespawnOrUnsummon(36000);
             }
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_four_horsemen.cpp b/src/server/scripts/Northrend/Naxxramas/boss_four_horsemen.cpp
index f1294bc0233..c715bd8aad7 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_four_horsemen.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_four_horsemen.cpp
@@ -106,7 +106,7 @@ public:
 
         void Initialize()
         {
-            uiEventStarterGUID = 0;
+            uiEventStarterGUID.Clear();
             nextWP = 0;
             punishTimer = 2000;
             nextMovementStarted = false;
@@ -118,7 +118,7 @@ public:
         }
 
         Horsemen id;
-        uint64 uiEventStarterGUID;
+        ObjectGuid uiEventStarterGUID;
         uint8 nextWP;
         uint32 punishTimer;
         bool caster;
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_gothik.cpp b/src/server/scripts/Northrend/Naxxramas/boss_gothik.cpp
index de9d85db70b..39381f38d67 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_gothik.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_gothik.cpp
@@ -182,8 +182,8 @@ class boss_gothik : public CreatureScript
             bool phaseTwo;
             bool thirtyPercentReached;
 
-            std::vector<uint64> LiveTriggerGUID;
-            std::vector<uint64> DeadTriggerGUID;
+            GuidVector LiveTriggerGUID;
+            GuidVector DeadTriggerGUID;
 
             void Reset() override
             {
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_heigan.cpp b/src/server/scripts/Northrend/Naxxramas/boss_heigan.cpp
index 0cc6167603b..aac59761626 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_heigan.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_heigan.cpp
@@ -135,7 +135,7 @@ public:
                 me->NearTeleportTo(x, y, z, o - (float(M_PI) / 2));
                 me->GetMotionMaster()->Clear();
                 me->GetMotionMaster()->MoveIdle();
-                me->SetTarget(0);
+                me->SetTarget(ObjectGuid::Empty);
                 DoCastAOE(SPELL_PLAGUE_CLOUD);
                 events.ScheduleEvent(EVENT_PHASE, 45000);
                 events.ScheduleEvent(EVENT_ERUPT, 8000);
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_kelthuzad.cpp b/src/server/scripts/Northrend/Naxxramas/boss_kelthuzad.cpp
index d0d9ba6b5e6..6fe7bb30056 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_kelthuzad.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_kelthuzad.cpp
@@ -285,13 +285,13 @@ public:
         uint8  nAbomination;
         uint8  nWeaver;
 
-        std::map<uint64, float> chained;
+        std::map<ObjectGuid, float> chained;
 
         SummonList spawns; // adds spawn by the trigger. kept in separated list (i.e. not in summons)
 
         void ResetPlayerScale()
         {
-            std::map<uint64, float>::const_iterator itr;
+            std::map<ObjectGuid, float>::const_iterator itr;
             for (itr = chained.begin(); itr != chained.end(); ++itr)
             {
                 if (Player* charmed = ObjectAccessor::GetPlayer(*me, itr->first))
@@ -495,7 +495,7 @@ public:
                         }
                         case EVENT_CHAINED_SPELL:
                         {
-                            std::map<uint64, float>::iterator itr;
+                            std::map<ObjectGuid, float>::iterator itr;
                             for (itr = chained.begin(); itr != chained.end();)
                             {
                                 if (Unit* player = ObjectAccessor::GetPlayer(*me, itr->first))
@@ -503,7 +503,7 @@ public:
                                     if (!player->IsCharmed())
                                     {
                                         player->SetObjectScale(itr->second);
-                                        std::map<uint64, float>::iterator next = itr;
+                                        std::map<ObjectGuid, float>::iterator next = itr;
                                         ++next;
                                         chained.erase(itr);
                                         itr = next;
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_sapphiron.cpp b/src/server/scripts/Northrend/Naxxramas/boss_sapphiron.cpp
index 0f5320a8fa1..ec38332613d 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_sapphiron.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_sapphiron.cpp
@@ -80,7 +80,7 @@ enum Misc
     MAX_FROST_RESISTANCE    = 100
 };
 
-typedef std::map<uint64, uint64> IceBlockMap;
+typedef std::map<ObjectGuid, ObjectGuid> IceBlockMap;
 
 class boss_sapphiron : public CreatureScript
 {
@@ -313,7 +313,7 @@ class boss_sapphiron : public CreatureScript
                                 {
                                     std::vector<Unit*>::const_iterator itr = targets.begin();
                                     advance(itr, rand32() % targets.size());
-                                    _iceblocks.insert(std::make_pair((*itr)->GetGUID(), 0));
+                                    _iceblocks.insert(std::make_pair((*itr)->GetGUID(), ObjectGuid::Empty));
                                     DoCast(*itr, SPELL_ICEBOLT);
                                     --_iceboltCount;
                                 }
diff --git a/src/server/scripts/Northrend/Nexus/EyeOfEternity/boss_malygos.cpp b/src/server/scripts/Northrend/Nexus/EyeOfEternity/boss_malygos.cpp
index 0d40eea5397..856a16fd4dd 100644
--- a/src/server/scripts/Northrend/Nexus/EyeOfEternity/boss_malygos.cpp
+++ b/src/server/scripts/Northrend/Nexus/EyeOfEternity/boss_malygos.cpp
@@ -354,9 +354,10 @@ public:
 
             _summonDeaths = 0;
             _preparingPulsesChecker = 0;
-            _arcaneOverloadGUID = 0;
-            _lastHitByArcaneBarrageGUID = 0;
-            memset(_surgeTargetGUID, 0, sizeof(_surgeTargetGUID));
+            _arcaneOverloadGUID.Clear();
+            _lastHitByArcaneBarrageGUID.Clear();
+            for (ObjectGuid& guid : _surgeTargetGUID)
+                guid.Clear();
 
             _killSpamFilter = false;
             _canAttack = false;
@@ -424,7 +425,7 @@ public:
             else if (type == DATA_LAST_TARGET_BARRAGE_GUID)
                 return _lastHitByArcaneBarrageGUID;
 
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         void SetGUID(ObjectGuid guid, int32 type) override
@@ -441,6 +442,7 @@ public:
                     break;
                 case DATA_LAST_TARGET_BARRAGE_GUID:
                     _lastHitByArcaneBarrageGUID = guid;
+                    break;
             }
         }
 
@@ -1030,9 +1032,9 @@ public:
         uint8 _phase; // Counter for phases used with a getter.
         uint8 _summonDeaths; // Keeps count of arcane trash.
         uint8 _preparingPulsesChecker; // In retail they use 2 preparing pulses with 7 sec CD, after they pass 2 seconds.
-        uint64 _arcaneOverloadGUID; // Last Arcane Overload summoned to know to which should visual be cast to (the purple ball, not bubble).
-        uint64 _lastHitByArcaneBarrageGUID; // Last hit player by Arcane Barrage, will be removed if targets > 1.
-        uint64 _surgeTargetGUID[3]; // All these three are used to keep current tagets to which warning should be sent.
+        ObjectGuid _arcaneOverloadGUID; // Last Arcane Overload summoned to know to which should visual be cast to (the purple ball, not bubble).
+        ObjectGuid _lastHitByArcaneBarrageGUID; // Last hit player by Arcane Barrage, will be removed if targets > 1.
+        ObjectGuid _surgeTargetGUID[3]; // All these three are used to keep current tagets to which warning should be sent.
 
         bool _killSpamFilter; // Prevent text spamming on killed player by helping implement a CD.
         bool _canAttack; // Used to control attacking (Move Chase not being applied after Stop Attack, only few times should act like this).
diff --git a/src/server/scripts/Northrend/Nexus/Nexus/boss_keristrasza.cpp b/src/server/scripts/Northrend/Nexus/Nexus/boss_keristrasza.cpp
index 73756119d78..d6afab7c3fd 100644
--- a/src/server/scripts/Northrend/Nexus/Nexus/boss_keristrasza.cpp
+++ b/src/server/scripts/Northrend/Nexus/Nexus/boss_keristrasza.cpp
@@ -73,8 +73,8 @@ public:
 
         InstanceScript* instance;
 
-        std::list<uint64> intenseColdList;
-        uint64 auiContainmentSphereGUIDs[DATA_CONTAINMENT_SPHERES];
+        GuidList intenseColdList;
+        ObjectGuid auiContainmentSphereGUIDs[DATA_CONTAINMENT_SPHERES];
         uint32 uiCrystalfireBreathTimer;
         uint32 uiCrystalChainsCrystalizeTimer;
         uint32 uiTailSweepTimer;
@@ -271,9 +271,9 @@ class achievement_intense_cold : public AchievementCriteriaScript
             if (!target)
                 return false;
 
-            std::list<uint64> intenseColdList = ENSURE_AI(boss_keristrasza::boss_keristraszaAI, target->ToCreature()->AI())->intenseColdList;
+            GuidList intenseColdList = ENSURE_AI(boss_keristrasza::boss_keristraszaAI, target->ToCreature()->AI())->intenseColdList;
             if (!intenseColdList.empty())
-                for (std::list<uint64>::iterator itr = intenseColdList.begin(); itr != intenseColdList.end(); ++itr)
+                for (GuidList::iterator itr = intenseColdList.begin(); itr != intenseColdList.end(); ++itr)
                     if (player->GetGUID() == *itr)
                         return false;
 
diff --git a/src/server/scripts/Northrend/Nexus/Nexus/boss_magus_telestra.cpp b/src/server/scripts/Northrend/Nexus/Nexus/boss_magus_telestra.cpp
index e42d3d2bcfc..6f42237e34a 100644
--- a/src/server/scripts/Northrend/Nexus/Nexus/boss_magus_telestra.cpp
+++ b/src/server/scripts/Northrend/Nexus/Nexus/boss_magus_telestra.cpp
@@ -77,9 +77,9 @@ public:
 
         InstanceScript* instance;
 
-        uint64 uiFireMagusGUID;
-        uint64 uiFrostMagusGUID;
-        uint64 uiArcaneMagusGUID;
+        ObjectGuid uiFireMagusGUID;
+        ObjectGuid uiFrostMagusGUID;
+        ObjectGuid uiArcaneMagusGUID;
 
         bool bFireMagusDead;
         bool bFrostMagusDead;
@@ -105,9 +105,9 @@ public:
             uiGravityWellTimer = 15*IN_MILLISECONDS;
             uiCooldown = 0;
 
-            uiFireMagusGUID = 0;
-            uiFrostMagusGUID = 0;
-            uiArcaneMagusGUID = 0;
+            uiFireMagusGUID.Clear();
+            uiFrostMagusGUID.Clear();
+            uiArcaneMagusGUID.Clear();
 
             for (uint8 n = 0; n < 3; ++n)
                 time[n] = 0;
@@ -163,7 +163,7 @@ public:
             return 0;
         }
 
-        uint64 SplitPersonality(uint32 entry)
+        ObjectGuid SplitPersonality(uint32 entry)
         {
             if (Creature* Summoned = me->SummonCreature(entry, me->GetPositionX(), me->GetPositionY(), me->GetPositionZ(), me->GetOrientation(), TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 1*IN_MILLISECONDS))
             {
@@ -189,7 +189,7 @@ public:
                     Summoned->AI()->AttackStart(target);
                 return Summoned->GetGUID();
             }
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         void SummonedCreatureDespawn(Creature* summon) override
@@ -246,9 +246,9 @@ public:
                         Phase = 2;
                     if (Phase == 3)
                         Phase = 4;
-                    uiFireMagusGUID = 0;
-                    uiFrostMagusGUID = 0;
-                    uiArcaneMagusGUID = 0;
+                    uiFireMagusGUID.Clear();
+                    uiFrostMagusGUID.Clear();
+                    uiArcaneMagusGUID.Clear();
                     bIsWaitingToAppear = true;
                     uiIsWaitingToAppearTimer = 4*IN_MILLISECONDS;
                     Talk(SAY_MERGE);
diff --git a/src/server/scripts/Northrend/Nexus/Oculus/boss_varos.cpp b/src/server/scripts/Northrend/Nexus/Oculus/boss_varos.cpp
index fa4542a9251..70371e17074 100644
--- a/src/server/scripts/Northrend/Nexus/Oculus/boss_varos.cpp
+++ b/src/server/scripts/Northrend/Nexus/Oculus/boss_varos.cpp
@@ -175,7 +175,7 @@ class npc_azure_ring_captain : public CreatureScript
 
             void Reset() override
             {
-                targetGUID = 0;
+                targetGUID.Clear();
 
                 me->SetWalk(true);
                 //! HACK: Creature's can't have MOVEMENTFLAG_FLYING
@@ -232,7 +232,7 @@ class npc_azure_ring_captain : public CreatureScript
            }
 
         private:
-            uint64 targetGUID;
+            ObjectGuid targetGUID;
             InstanceScript* instance;
         };
 
diff --git a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_ionar.cpp b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_ionar.cpp
index baa15d29429..932a8e7b691 100644
--- a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_ionar.cpp
+++ b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_ionar.cpp
@@ -162,7 +162,7 @@ public:
 
             Position pos = me->GetPosition();
 
-            for (uint64 guid : lSparkList)
+            for (ObjectGuid guid : lSparkList)
             {
                 if (Creature* pSpark = ObjectAccessor::GetCreature(*me, guid))
                 {
diff --git a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_volkhan.cpp b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_volkhan.cpp
index 31805d3404f..c377de38372 100644
--- a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_volkhan.cpp
+++ b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_volkhan.cpp
@@ -83,7 +83,7 @@ public:
 
         InstanceScript* instance;
 
-        std::list<uint64> m_lGolemGUIDList;
+        GuidList m_lGolemGUIDList;
 
         bool m_bHasTemper;
         bool m_bIsStriking;
@@ -158,7 +158,7 @@ public:
             if (m_lGolemGUIDList.empty())
                 return;
 
-            for (uint64 guid : m_lGolemGUIDList)
+            for (ObjectGuid guid : m_lGolemGUIDList)
             {
                 if (Creature* temp = ObjectAccessor::GetCreature(*me, guid))
                     if (temp->IsAlive())
@@ -173,7 +173,7 @@ public:
             if (m_lGolemGUIDList.empty())
                 return;
 
-            for (uint64 guid : m_lGolemGUIDList)
+            for (ObjectGuid guid : m_lGolemGUIDList)
             {
                 if (Creature* temp = ObjectAccessor::GetCreature(*me, guid))
                 {
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp
index 71556e4d19d..52cf017eb8e 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp
@@ -266,7 +266,7 @@ class boss_flame_leviathan : public CreatureScript
                 _Reset();
                 //resets shutdown counter to 0.  2 or 4 depending on raid mode
                 Shutdown = 0;
-                _pursueTarget = 0;
+                _pursueTarget.Clear();
 
                 me->SetReactState(REACT_DEFENSIVE);
             }
@@ -550,7 +550,7 @@ class boss_flame_leviathan : public CreatureScript
                     }
                 }
 
-                uint64 _pursueTarget;
+                ObjectGuid _pursueTarget;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -978,7 +978,7 @@ public:
             npc_escortAI::UpdateAI(diff);
 
             if (!HasEscortState(STATE_ESCORT_ESCORTING))
-                Start(false, true, 0, NULL, false, true);
+                Start(false, true, ObjectGuid::Empty, NULL, false, true);
             else
             {
                 if (infernoTimer <= diff)
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_freya.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_freya.cpp
index f888124d54e..b3755672790 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_freya.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_freya.cpp
@@ -226,7 +226,6 @@ class npc_iron_roots : public CreatureScript
                 me->ApplySpellImmune(0, IMMUNITY_ID, 49560, true); // Death Grip
                 me->setFaction(14);
                 me->SetReactState(REACT_PASSIVE);
-                summonerGUID = 0;
             }
 
             void IsSummonedBy(Unit* summoner) override
@@ -251,7 +250,7 @@ class npc_iron_roots : public CreatureScript
             }
 
         private:
-            uint64 summonerGUID;
+            ObjectGuid summonerGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -269,7 +268,7 @@ class boss_freya : public CreatureScript
         {
             boss_freyaAI(Creature* creature) : BossAI(creature, BOSS_FREYA) { }
 
-            uint64 ElementalGUID[3][2];
+            ObjectGuid ElementalGUID[3][2];
 
             uint32 deforestation[6][2];
             uint32 elementalTimer[2];
@@ -294,7 +293,7 @@ class boss_freya : public CreatureScript
 
                 for (uint8 i = 0; i < 3; ++i)
                     for (uint8 n = 0; n < 2; ++n)
-                        ElementalGUID[i][n] = 0;
+                        ElementalGUID[i][n].Clear();
                 for (uint8 i = 0; i < 6; ++i)
                     for (uint8 n = 0; n < 2; ++n)
                         deforestation[i][n] = 0;
@@ -1544,17 +1543,17 @@ class spell_freya_attuned_to_nature_dose_reduction : public SpellScriptLoader
                     case SPELL_ATTUNED_TO_NATURE_2_DOSE_REDUCTION:
                         if (target->HasAura(GetEffectValue()))
                             for (uint8 n = 0; n < 2; ++n)
-                                target->RemoveAuraFromStack(GetEffectValue(), 0, AURA_REMOVE_BY_DEFAULT);
+                                target->RemoveAuraFromStack(GetEffectValue());
                         break;
                     case SPELL_ATTUNED_TO_NATURE_10_DOSE_REDUCTION:
                         if (target->HasAura(GetEffectValue()))
                             for (uint8 n = 0; n < 10; ++n)
-                                target->RemoveAuraFromStack(GetEffectValue(), 0, AURA_REMOVE_BY_DEFAULT);
+                                target->RemoveAuraFromStack(GetEffectValue());
                         break;
                     case SPELL_ATTUNED_TO_NATURE_25_DOSE_REDUCTION:
                         if (target->HasAura(GetEffectValue()))
                             for (uint8 n = 0; n < 25; ++n)
-                                target->RemoveAuraFromStack(GetEffectValue(), 0, AURA_REMOVE_BY_DEFAULT);
+                                target->RemoveAuraFromStack(GetEffectValue());
                         break;
                     default:
                         break;
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_hodir.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_hodir.cpp
index 3c9aebbac8d..7eb6c72feab 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_hodir.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_hodir.cpp
@@ -188,12 +188,12 @@ class npc_flash_freeze : public CreatureScript
 
             InstanceScript* instance;
 
-            uint64 targetGUID;
+            ObjectGuid targetGUID;
             uint32 checkDespawnTimer;
 
             void Reset() override
             {
-                targetGUID = 0;
+                targetGUID.Clear();
                 checkDespawnTimer = 1000;
             }
 
@@ -254,12 +254,11 @@ class npc_ice_block : public CreatureScript
                 instance = me->GetInstanceScript();
                 me->SetDisplayId(me->GetCreatureTemplate()->Modelid2);
                 me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_DISABLE_MOVE | UNIT_FLAG_STUNNED | UNIT_FLAG_PACIFIED);
-                targetGUID = 0;
             }
 
             InstanceScript* instance;
 
-            uint64 targetGUID;
+            ObjectGuid targetGUID;
 
             void IsSummonedBy(Unit* summoner) override
             {
@@ -966,7 +965,7 @@ class spell_biting_cold : public SpellScriptLoader
             }
 
         private:
-            typedef std::list< std::pair<uint64, uint8> > TargetList;
+            typedef std::list<std::pair<ObjectGuid, uint8>> TargetList;
             TargetList listOfTargets;
         };
 
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_ignis.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_ignis.cpp
index 525d9880d9f..e91e6ab4c5f 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_ignis.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_ignis.cpp
@@ -140,7 +140,7 @@ class boss_ignis : public CreatureScript
                 events.ScheduleEvent(EVENT_CONSTRUCT, 15000);
                 events.ScheduleEvent(EVENT_END_POT, 40000);
                 events.ScheduleEvent(EVENT_BERSERK, 480000);
-                _slagPotGUID = 0;
+                _slagPotGUID.Clear();
                 _shattered = false;
                 _firstConstructKill = 0;
                 instance->DoStartTimedAchievement(ACHIEVEMENT_TIMED_TYPE_EVENT, ACHIEVEMENT_IGNIS_START_EVENT);
@@ -245,7 +245,7 @@ class boss_ignis : public CreatureScript
                             {
                                 slagPotTarget->ExitVehicle();
                                 slagPotTarget = NULL;
-                                _slagPotGUID = 0;
+                                _slagPotGUID.Clear();
                                 events.CancelEvent(EVENT_END_POT);
                             }
                             break;
@@ -276,7 +276,7 @@ class boss_ignis : public CreatureScript
             }
 
         private:
-            uint64 _slagPotGUID;
+            ObjectGuid _slagPotGUID;
             Vehicle* _vehicle;
             time_t _firstConstructKill;
             bool _shattered;
@@ -370,7 +370,6 @@ class npc_scorch_ground : public CreatureScript
             }
 
             void MoveInLineOfSight(Unit* who) override
-
             {
                 if (!_heat)
                 {
@@ -389,7 +388,7 @@ class npc_scorch_ground : public CreatureScript
             {
                 _heat = false;
                 DoCast(me, SPELL_GROUND);
-                _constructGUID = 0;
+                _constructGUID.Clear();
                 _heatTimer = 0;
             }
 
@@ -412,7 +411,7 @@ class npc_scorch_ground : public CreatureScript
             }
 
         private:
-            uint64 _constructGUID;
+            ObjectGuid _constructGUID;
             uint32 _heatTimer;
             bool _heat;
         };
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_kologarn.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_kologarn.cpp
index 85990a90066..9486d95639f 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_kologarn.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_kologarn.cpp
@@ -115,7 +115,7 @@ class boss_kologarn : public CreatureScript
 
             Vehicle* vehicle;
             bool left, right;
-            uint64 eyebeamTarget;
+            ObjectGuid eyebeamTarget;
 
             void EnterCombat(Unit* /*who*/) override
             {
@@ -139,7 +139,7 @@ class boss_kologarn : public CreatureScript
             {
                 _Reset();
                 me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
-                eyebeamTarget = 0;
+                eyebeamTarget.Clear();
             }
 
             void JustDied(Unit* /*killer*/) override
@@ -339,7 +339,7 @@ class spell_ulduar_rubble_summon : public SpellScriptLoader
                 if (!caster)
                     return;
 
-                uint64 originalCaster = caster->GetInstanceScript() ? caster->GetInstanceScript()->GetGuidData(BOSS_KOLOGARN) : 0;
+                ObjectGuid originalCaster = caster->GetInstanceScript() ? caster->GetInstanceScript()->GetGuidData(BOSS_KOLOGARN) : ObjectGuid::Empty;
                 uint32 spellId = GetEffectValue();
                 for (uint8 i = 0; i < 5; ++i)
                     caster->CastSpell(caster, spellId, true, NULL, NULL, originalCaster);
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_razorscale.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_razorscale.cpp
index a1c45e99614..9dff8025f7a 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_razorscale.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_razorscale.cpp
@@ -592,14 +592,14 @@ class npc_expedition_commander : public CreatureScript
 
         struct npc_expedition_commanderAI : public ScriptedAI
         {
-            npc_expedition_commanderAI(Creature* creature) : ScriptedAI(creature)
+            npc_expedition_commanderAI(Creature* creature) : ScriptedAI(creature), summons(creature)
             {
                 instance = me->GetInstanceScript();
                 Greet = false;
             }
 
             InstanceScript* instance;
-            std::list<uint64> summons;
+            SummonList summons;
 
             bool Greet;
             uint32 AttackStartTimer;
@@ -612,7 +612,7 @@ class npc_expedition_commander : public CreatureScript
                 AttackStartTimer = 0;
                 Phase = 0;
                 Greet = false;
-                summons.clear();
+                summons.DespawnAll();
             }
 
             void MoveInLineOfSight(Unit* who) override
@@ -627,7 +627,7 @@ class npc_expedition_commander : public CreatureScript
 
             void JustSummoned(Creature* summoned) override
             {
-                summons.push_back(summoned->GetGUID());
+                summons.Summon(summoned);
             }
 
             void DoAction(int32 action) override
@@ -638,7 +638,7 @@ class npc_expedition_commander : public CreatureScript
                         Talk(SAY_GROUND_PHASE);
                         break;
                     case ACTION_COMMANDER_RESET:
-                        summons.clear();
+                        summons.DespawnAll();
                         me->SetFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP);
                         break;
                 }
@@ -652,7 +652,7 @@ class npc_expedition_commander : public CreatureScript
                     {
                         case 1:
                             instance->SetBossState(BOSS_RAZORSCALE, IN_PROGRESS);
-                            summons.clear();
+                            summons.DespawnAll();
                             AttackStartTimer = 1000;
                             Phase = 2;
                             break;
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yogg_saron.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yogg_saron.cpp
index facc6a06c85..9cbd7be8059 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yogg_saron.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yogg_saron.cpp
@@ -666,23 +666,23 @@ class boss_sara : public CreatureScript
         {
             boss_saraAI(Creature* creature) : ScriptedAI(creature), _instance(creature->GetInstanceScript()) { }
 
-            uint64 GetLinkedPlayerGUID(uint64 guid) const
+            ObjectGuid GetLinkedPlayerGUID(ObjectGuid guid) const
             {
-                std::map<uint64, uint64>::const_iterator itr = _linkData.find(guid);
+                std::map<ObjectGuid, ObjectGuid>::const_iterator itr = _linkData.find(guid);
                 if (itr != _linkData.end())
                     return itr->second;
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
-            void SetLinkBetween(uint64 player1, uint64 player2)
+            void SetLinkBetween(ObjectGuid player1, ObjectGuid player2)
             {
                 _linkData[player1] = player2;
                 _linkData[player2] = player1;
             }
 
             // called once for each target on aura remove
-            void RemoveLinkFrom(uint64 player1)
+            void RemoveLinkFrom(ObjectGuid player1)
             {
                 _linkData.erase(player1);
             }
@@ -870,7 +870,7 @@ class boss_sara : public CreatureScript
             private:
                 EventMap _events;
                 InstanceScript* _instance;
-                std::map<uint64, uint64> _linkData;
+                std::map<ObjectGuid, ObjectGuid> _linkData;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -2782,7 +2782,7 @@ class spell_yogg_saron_induce_madness : public SpellScriptLoader    // 64059
                 if (Unit* target = GetHitUnit())
                 {
                     target->CastSpell(target, SPELL_TELEPORT_BACK_TO_MAIN_ROOM);
-                    target->RemoveAurasDueToSpell(SPELL_SANITY, 0, 0, AURA_REMOVE_BY_ENEMY_SPELL);
+                    target->RemoveAurasDueToSpell(SPELL_SANITY, ObjectGuid::Empty, 0, AURA_REMOVE_BY_ENEMY_SPELL);
                     target->RemoveAurasDueToSpell(uint32(GetEffectValue()));
                 }
             }
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_skadi.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_skadi.cpp
index 67a77ec3a7f..fb40f794fd5 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_skadi.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_skadi.cpp
@@ -170,13 +170,11 @@ public:
         boss_skadiAI(Creature* creature) : ScriptedAI(creature), Summons(me)
         {
             instance = creature->GetInstanceScript();
-            m_uiGraufGUID = 0;
         }
 
         InstanceScript* instance;
         SummonList Summons;
-        uint64 m_uiGraufGUID;
-        std::vector<uint64> triggersGUID;
+        ObjectGuid m_uiGraufGUID;
 
         uint32 m_uiCrushTimer;
         uint32 m_uiPoisonedSpearTimer;
@@ -192,8 +190,6 @@ public:
 
         void Reset() override
         {
-            triggersGUID.clear();
-
             m_uiCrushTimer = 8000;
             m_uiPoisonedSpearTimer = 10000;
             m_uiWhirlwindTimer = 20000;
@@ -266,7 +262,7 @@ public:
         void SummonedCreatureDespawn(Creature* summoned) override
         {
             if (summoned->GetEntry() == NPC_GRAUF)
-                m_uiGraufGUID = 0;
+                m_uiGraufGUID.Clear();
             Summons.Despawn(summoned);
         }
 
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_svala.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_svala.cpp
index 61c8b7ff1fe..d69f0885f58 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_svala.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_svala.cpp
@@ -153,9 +153,9 @@ class boss_svala : public CreatureScript
 
                 me->SetDisableGravity(events.IsInPhase(NORMAL));
 
-                _arthasGUID = 0;
+                _arthasGUID.Clear();
 
-                instance->SetGuidData(DATA_SACRIFICED_PLAYER, 0);
+                instance->SetGuidData(DATA_SACRIFICED_PLAYER, ObjectGuid::Empty);
             }
 
             void EnterCombat(Unit* /*who*/) override
@@ -181,7 +181,7 @@ class boss_svala : public CreatureScript
                     events.SetPhase(INTRO);
                     me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
 
-                    if (GameObject* mirror = ObjectAccessor::GetGameObject(*me, DATA_UTGARDE_MIRROR))
+                    if (GameObject* mirror = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_UTGARDE_MIRROR)))
                         mirror->SetGoState(GO_STATE_READY);
 
                     if (Creature* arthas = me->SummonCreature(NPC_ARTHAS, ArthasPos, TEMPSUMMON_MANUAL_DESPAWN))
@@ -324,12 +324,12 @@ class boss_svala : public CreatureScript
                             break;
                         }
                         case EVENT_INTRO_DESPAWN_ARTHAS:
-                            if (GameObject* mirror = ObjectAccessor::GetGameObject(*me, DATA_UTGARDE_MIRROR))
+                            if (GameObject* mirror = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_UTGARDE_MIRROR)))
                                 mirror->SetGoState(GO_STATE_ACTIVE);
                             me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                             if (Creature* arthas = ObjectAccessor::GetCreature(*me, _arthasGUID))
                                 arthas->DespawnOrUnsummon();
-                            _arthasGUID = 0;
+                            _arthasGUID.Clear();
                             events.SetPhase(NORMAL);
                             _introCompleted = true;
                             events.ScheduleEvent(EVENT_SINISTER_STRIKE, 7 * IN_MILLISECONDS, 0, NORMAL);
@@ -378,7 +378,7 @@ class boss_svala : public CreatureScript
             }
 
         private:
-            uint64 _arthasGUID;
+            ObjectGuid _arthasGUID;
             bool _sacrificed;
             bool _introCompleted;
         };
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_ymiron.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_ymiron.cpp
index 01e09ca2f9a..9521d0cf4cf 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_ymiron.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_ymiron.cpp
@@ -138,8 +138,8 @@ public:
         uint32 m_uiHealthAmountModifier;
         uint32 m_uiHealthAmountMultipler;
 
-        uint64 m_uiActivedCreatureGUID;
-        uint64 m_uiOrbGUID;
+        ObjectGuid m_uiActivedCreatureGUID;
+        ObjectGuid m_uiOrbGUID;
 
         void Reset() override
         {
@@ -167,8 +167,8 @@ public:
             m_uiHealthAmountModifier = 1;
             m_uiHealthAmountMultipler = DUNGEON_MODE(20, 25);
 
-            m_uiActivedCreatureGUID = 0;
-            m_uiOrbGUID = 0;
+            m_uiActivedCreatureGUID.Clear();
+            m_uiOrbGUID.Clear();
         }
 
         void EnterCombat(Unit* /*who*/) override
@@ -361,13 +361,13 @@ public:
                 Talk(SAY_SLAY);
         }
 
-        void DespawnBoatGhosts(uint64& m_uiCreatureGUID)
+        void DespawnBoatGhosts(ObjectGuid& m_uiCreatureGUID)
         {
             if (m_uiCreatureGUID)
                 if (Creature* temp = ObjectAccessor::GetCreature(*me, m_uiCreatureGUID))
                     temp->DisappearAndDie();
 
-            m_uiCreatureGUID = 0;
+            m_uiCreatureGUID.Clear();
         }
     };
 
diff --git a/src/server/scripts/Northrend/VaultOfArchavon/boss_emalon.cpp b/src/server/scripts/Northrend/VaultOfArchavon/boss_emalon.cpp
index 7ab541f15b7..1118af13777 100644
--- a/src/server/scripts/Northrend/VaultOfArchavon/boss_emalon.cpp
+++ b/src/server/scripts/Northrend/VaultOfArchavon/boss_emalon.cpp
@@ -101,7 +101,7 @@ class boss_emalon : public CreatureScript
             {
                 if (!summons.empty())
                 {
-                    for (std::list<uint64>::const_iterator itr = summons.begin(); itr != summons.end(); ++itr)
+                    for (SummonList::const_iterator itr = summons.begin(); itr != summons.end(); ++itr)
                     {
                         Creature* minion = ObjectAccessor::GetCreature(*me, *itr);
                         if (minion && minion->IsAlive() && !minion->GetVictim() && minion->AI())
diff --git a/src/server/scripts/Northrend/VioletHold/boss_erekem.cpp b/src/server/scripts/Northrend/VioletHold/boss_erekem.cpp
index adf639d0ff8..87d34efe74f 100644
--- a/src/server/scripts/Northrend/VioletHold/boss_erekem.cpp
+++ b/src/server/scripts/Northrend/VioletHold/boss_erekem.cpp
@@ -166,7 +166,7 @@ public:
 
             if (uiChainHealTimer <= diff)
             {
-                if (uint64 TargetGUID = GetChainHealTargetGUID())
+                if (ObjectGuid TargetGUID = GetChainHealTargetGUID())
                 {
                     if (Creature* target = ObjectAccessor::GetCreature(*me, TargetGUID))
                         DoCast(target, SPELL_CHAIN_HEAL);
@@ -224,7 +224,7 @@ public:
             Talk(SAY_SLAY);
         }
 
-        uint64 GetChainHealTargetGUID()
+        ObjectGuid GetChainHealTargetGUID()
         {
             if (HealthBelowPct(85))
                 return me->GetGUID();
@@ -237,7 +237,7 @@ public:
             if (pGuard2 && pGuard2->IsAlive() && !pGuard2->HealthAbovePct(75))
                 return pGuard2->GetGUID();
 
-            return 0;
+            return ObjectGuid::Empty;
         }
     };
 
diff --git a/src/server/scripts/Northrend/VioletHold/boss_ichoron.cpp b/src/server/scripts/Northrend/VioletHold/boss_ichoron.cpp
index cdad8028d0e..d556d19f670 100644
--- a/src/server/scripts/Northrend/VioletHold/boss_ichoron.cpp
+++ b/src/server/scripts/Northrend/VioletHold/boss_ichoron.cpp
@@ -221,7 +221,7 @@ public:
                 {
                     if (!bIsExploded)
                     {
-                        if (!me->HasAura(SPELL_PROTECTIVE_BUBBLE, 0))
+                        if (!me->HasAura(SPELL_PROTECTIVE_BUBBLE))
                         {
                             Talk(SAY_SHATTER);
                             DoCast(me, SPELL_WATER_BLAST);
@@ -241,7 +241,7 @@ public:
                         bool bIsWaterElementsAlive = false;
                         if (!m_waterElements.empty())
                         {
-                            for (std::list<uint64>::const_iterator itr = m_waterElements.begin(); itr != m_waterElements.end(); ++itr)
+                            for (SummonList::const_iterator itr = m_waterElements.begin(); itr != m_waterElements.end(); ++itr)
                                 if (Creature* temp = ObjectAccessor::GetCreature(*me, *itr))
                                     if (temp->IsAlive())
                                     {
diff --git a/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_exarch_maladaar.cpp b/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_exarch_maladaar.cpp
index 7ba0a452941..1cfd7a23f39 100644
--- a/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_exarch_maladaar.cpp
+++ b/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_exarch_maladaar.cpp
@@ -174,7 +174,7 @@ public:
         }
 
         uint32 soulmodel;
-        uint64 soulholder;
+        ObjectGuid soulholder;
         uint8 soulclass;
 
         uint32 Fear_timer;
@@ -187,7 +187,7 @@ public:
         void Reset() override
         {
             soulmodel = 0;
-            soulholder = 0;
+            soulholder.Clear();
             soulclass = 0;
 
             Fear_timer = 15000 + rand32() % 5000;
diff --git a/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_shirrak_the_dead_watcher.cpp b/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_shirrak_the_dead_watcher.cpp
index 683b253d8a1..9a94096c2de 100644
--- a/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_shirrak_the_dead_watcher.cpp
+++ b/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_shirrak_the_dead_watcher.cpp
@@ -69,7 +69,7 @@ public:
         uint32 Carnivorousbite_Timer;
         uint32 FocusFire_Timer;
 
-        uint64 FocusedTargetGUID;
+        ObjectGuid FocusedTargetGUID;
 
         void Reset() override
         {
@@ -77,7 +77,7 @@ public:
             Attractmagic_Timer = 28000;
             Carnivorousbite_Timer = 10000;
             FocusFire_Timer = 17000;
-            FocusedTargetGUID = 0;
+            FocusedTargetGUID.Clear();
         }
 
         void EnterCombat(Unit* /*who*/) override
diff --git a/src/server/scripts/Outland/BlackTemple/boss_gurtogg_bloodboil.cpp b/src/server/scripts/Outland/BlackTemple/boss_gurtogg_bloodboil.cpp
index f03caa37cb2..b41e7e77452 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_gurtogg_bloodboil.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_gurtogg_bloodboil.cpp
@@ -73,7 +73,7 @@ public:
 
         InstanceScript* instance;
 
-        uint64 TargetGUID;
+        ObjectGuid TargetGUID;
 
         float TargetThreat;
 
@@ -94,7 +94,7 @@ public:
         {
             instance->SetBossState(DATA_GURTOGG_BLOODBOIL, NOT_STARTED);
 
-            TargetGUID = 0;
+            TargetGUID.Clear();
 
             TargetThreat = 0;
 
@@ -134,7 +134,7 @@ public:
             Talk(SAY_DEATH);
         }
 
-        void RevertThreatOnTarget(uint64 guid)
+        void RevertThreatOnTarget(ObjectGuid guid)
         {
             if (Unit* unit = ObjectAccessor::GetUnit(*me, guid))
             {
@@ -258,7 +258,7 @@ public:
                 {
                     if (TargetGUID)
                         RevertThreatOnTarget(TargetGUID);
-                    TargetGUID = 0;
+                    TargetGUID.Clear();
                     Phase1 = true;
                     BloodboilTimer = 10000;
                     BloodboilCount = 0;
diff --git a/src/server/scripts/Outland/BlackTemple/boss_illidan.cpp b/src/server/scripts/Outland/BlackTemple/boss_illidan.cpp
index 6bf29a307be..3f08ecad7b7 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_illidan.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_illidan.cpp
@@ -383,7 +383,7 @@ public:
         {
             FlameBlastTimer = 15000;
             CheckTimer = 5000;
-            GlaiveGUID = 0;
+            GlaiveGUID.Clear();
         }
 
         void EnterCombat(Unit* /*who*/) override
@@ -426,7 +426,7 @@ public:
             }
         }
 
-        void SetGlaiveGUID(uint64 guid)
+        void SetGlaiveGUID(ObjectGuid guid)
         {
             GlaiveGUID = guid;
         }
@@ -457,7 +457,7 @@ public:
     private:
         uint32 FlameBlastTimer;
         uint32 CheckTimer;
-        uint64 GlaiveGUID;
+        ObjectGuid GlaiveGUID;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -478,7 +478,6 @@ public:
         {
             instance = creature->GetInstanceScript();
             DoCast(me, SPELL_DUAL_WIELD, true);
-            AkamaGUID = 0;
         }
 
         void Reset() override;
@@ -491,7 +490,7 @@ public:
             {
                 for (uint8 i = 0; i < 2; ++i)
                     if (summon->GetGUID() == FlameGUID[i])
-                        FlameGUID[i] = 0;
+                        FlameGUID[i].Clear();
 
                 if (!FlameGUID[0] && !FlameGUID[1] && Phase != PHASE_ILLIDAN_NULL)
                 {
@@ -575,7 +574,7 @@ public:
             }
         }
 
-        void DeleteFromThreatList(uint64 TargetGUID)
+        void DeleteFromThreatList(ObjectGuid TargetGUID)
         {
             ThreatContainer::StorageType threatlist = me->getThreatManager().getThreatList();
             for (ThreatContainer::StorageType::const_iterator itr = threatlist.begin(); itr != threatlist.end(); ++itr)
@@ -852,7 +851,7 @@ public:
                         if (Creature* glaive = ObjectAccessor::GetCreature(*me, GlaiveGUID[i]))
                             glaive->DespawnOrUnsummon();
 
-                        GlaiveGUID[i] = 0;
+                        GlaiveGUID[i].Clear();
                     }
                 }
                 Timer[EVENT_FLIGHT_SEQUENCE] = 2000;
@@ -1105,7 +1104,7 @@ public:
         }
 
     public:
-        uint64 AkamaGUID;
+        ObjectGuid AkamaGUID;
         uint32 Timer[EVENT_ENRAGE + 1];
         PhaseIllidan Phase;
     private:
@@ -1115,9 +1114,9 @@ public:
         uint32 TransformCount;
         uint32 FlightCount;
         uint32 HoverPoint;
-        uint64 MaievGUID;
-        uint64 FlameGUID[2];
-        uint64 GlaiveGUID[2];
+        ObjectGuid MaievGUID;
+        ObjectGuid FlameGUID[2];
+        ObjectGuid GlaiveGUID[2];
         SummonList Summons;
     };
 
@@ -1143,7 +1142,7 @@ public:
         {
             MaxTimer = 0;
             Phase = PHASE_NORMAL_MAIEV;
-            IllidanGUID = 0;
+            IllidanGUID.Clear();
             Timer[EVENT_MAIEV_STEALTH] = 0;
             Timer[EVENT_MAIEV_TAUNT] = urand(22, 43) * 1000;
             Timer[EVENT_MAIEV_SHADOW_STRIKE] = 30000;
@@ -1156,7 +1155,7 @@ public:
 
         void EnterEvadeMode() override { }
 
-        void GetIllidanGUID(uint64 guid)
+        void GetIllidanGUID(ObjectGuid guid)
         {
             IllidanGUID = guid;
         }
@@ -1336,7 +1335,7 @@ public:
         }
 
     private:
-        uint64 IllidanGUID;
+        ObjectGuid IllidanGUID;
         PhaseIllidan Phase;
         EventMaiev Event;
         uint32 Timer[5];
@@ -1388,9 +1387,9 @@ public:
                     instance->HandleGameObject(DoorGUID[i], true);
             }
 
-            ChannelGUID   = 0;
-            SpiritGUID[0] = 0;
-            SpiritGUID[1] = 0;
+            ChannelGUID.Clear();
+            SpiritGUID[0].Clear();
+            SpiritGUID[1].Clear();
 
             Phase         = PHASE_AKAMA_NULL;
             Timer         = 0;
@@ -1761,11 +1760,11 @@ public:
         PhaseAkama Phase;
         bool Event;
         uint32 Timer;
-        uint64 IllidanGUID;
-        uint64 ChannelGUID;
-        uint64 SpiritGUID[2];
-        uint64 GateGUID;
-        uint64 DoorGUID[2];
+        ObjectGuid IllidanGUID;
+        ObjectGuid ChannelGUID;
+        ObjectGuid SpiritGUID[2];
+        ObjectGuid GateGUID;
+        ObjectGuid DoorGUID[2];
         uint32 ChannelCount;
         uint32 WalkCount;
         uint32 TalkCount;
@@ -1790,11 +1789,11 @@ void boss_illidan_stormrage::boss_illidan_stormrageAI::Reset()
             akama->AI()->EnterEvadeMode();
     }
 
-    MaievGUID = 0;
+    MaievGUID.Clear();
     for (uint8 i = 0; i < 2; ++i)
     {
-        FlameGUID[i] = 0;
-        GlaiveGUID[i] = 0;
+        FlameGUID[i].Clear();
+        GlaiveGUID[i].Clear();
     }
 
     Phase = PHASE_ILLIDAN_NULL;
@@ -1959,7 +1958,7 @@ public:
 
         void Reset() override
         {
-            IllidanGUID = 0;
+            IllidanGUID.Clear();
 
             Active = false;
             SummonedBeams = false;
@@ -2017,7 +2016,7 @@ public:
     public:
         bool Active;
     private:
-        uint64 IllidanGUID;
+        ObjectGuid IllidanGUID;
         uint32 DespawnTimer;
         bool SummonedBeams;
     };
@@ -2062,7 +2061,7 @@ public:
 
         void Reset() override
         {
-            TargetGUID = 0;
+            TargetGUID.Clear();
             DoCast(me, SPELL_SHADOW_DEMON_PASSIVE, true);
         }
 
@@ -2093,7 +2092,7 @@ public:
         }
 
     private:
-        uint64 TargetGUID;
+        ObjectGuid TargetGUID;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -2198,7 +2197,7 @@ public:
 
     private:
         InstanceScript* instance;
-        uint64 IllidanGUID;
+        ObjectGuid IllidanGUID;
         uint32 CheckTimer;
     };
 
diff --git a/src/server/scripts/Outland/BlackTemple/boss_mother_shahraz.cpp b/src/server/scripts/Outland/BlackTemple/boss_mother_shahraz.cpp
index 60162188f7e..39aac706acc 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_mother_shahraz.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_mother_shahraz.cpp
@@ -112,8 +112,8 @@ public:
 
         void Initialize()
         {
-            for (uint8 i = 0; i<3; ++i)
-                TargetGUID[i] = 0;
+            for (uint8 i = 0; i < 3; ++i)
+                TargetGUID[i].Clear();
 
             BeamCount = 0;
             CurrentBeam = SINISTER_BEAM;   // 0 - Sinister, 1 - Vile, 2 - Wicked, 3 - Sinful
@@ -236,7 +236,7 @@ public:
                             {
                                 if (Unit* unit = ObjectAccessor::GetUnit(*me, TargetGUID[i]))
                                     unit->CastSpell(unit, SPELL_ATTRACTION, true);
-                                TargetGUID[i] = 0;
+                                TargetGUID[i].Clear();
                             }
                         }
                         ++ExplosionCount;
@@ -267,7 +267,7 @@ public:
         }
 
     private:
-        uint64 TargetGUID[3];
+        ObjectGuid TargetGUID[3];
         uint32 BeamCount;
         uint32 CurrentBeam;
         uint32 ExplosionCount;
diff --git a/src/server/scripts/Outland/BlackTemple/boss_reliquary_of_souls.cpp b/src/server/scripts/Outland/BlackTemple/boss_reliquary_of_souls.cpp
index f3c8af50328..c5989f4df64 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_reliquary_of_souls.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_reliquary_of_souls.cpp
@@ -113,9 +113,12 @@ public:
     {
         npc_enslaved_soulAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 ReliquaryGUID;
+        ObjectGuid ReliquaryGUID;
 
-        void Reset() override { ReliquaryGUID = 0; }
+        void Reset() override
+        {
+            ReliquaryGUID.Clear(); 
+        }
 
         void EnterCombat(Unit* /*who*/) override
         {
@@ -142,12 +145,11 @@ public:
         boss_reliquary_of_soulsAI(Creature* creature) : ScriptedAI(creature)
         {
             instance = creature->GetInstanceScript();
-            EssenceGUID = 0;
         }
 
         InstanceScript* instance;
 
-        uint64 EssenceGUID;
+        ObjectGuid EssenceGUID;
 
         uint32 Phase;
         uint32 Counter;
@@ -165,7 +167,7 @@ public:
                 if (Creature* essence = ObjectAccessor::GetCreature(*me, EssenceGUID))
                     essence->DespawnOrUnsummon();
 
-                EssenceGUID = 0;
+                EssenceGUID.Clear();
             }
 
             Phase = 0;
@@ -334,17 +336,15 @@ public:
                     if (Essence)
                     {
                         if (Phase == 1)
-                        {
                             Essence->AI()->Talk(SUFF_SAY_AFTER);
-                        }
                         else
-                        {
                             Essence->AI()->Talk(DESI_SAY_AFTER);
-                        }
+
                         Essence->DespawnOrUnsummon();
                     }
+
                     me->SetUInt32Value(UNIT_NPC_EMOTESTATE, 0);
-                    EssenceGUID = 0;
+                    EssenceGUID.Clear();
                     SoulCount = 0;
                     SoulDeathCount = 0;
                     Timer = 3000;
@@ -624,7 +624,7 @@ public:
     {
         boss_essence_of_angerAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 AggroTargetGUID;
+        ObjectGuid AggroTargetGUID;
 
         uint32 CheckTankTimer;
         uint32 SoulScreamTimer;
@@ -636,7 +636,7 @@ public:
 
         void Reset() override
         {
-            AggroTargetGUID = 0;
+            AggroTargetGUID.Clear();
 
             CheckTankTimer = 5000;
             SoulScreamTimer = 10000;
diff --git a/src/server/scripts/Outland/BlackTemple/boss_shade_of_akama.cpp b/src/server/scripts/Outland/BlackTemple/boss_shade_of_akama.cpp
index 1715401b6c4..6b337e42087 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_shade_of_akama.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_shade_of_akama.cpp
@@ -175,11 +175,11 @@ public:
         {
             if (!HasKilledAkamaAndReseting)
             {
-                for (std::list<uint64>::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
+                for (GuidList::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
                     if (Creature* Channeler = ObjectAccessor::GetCreature(*me, *itr))
                         Channeler->DespawnOrUnsummon();
 
-                for (std::list<uint64>::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
+                for (GuidList::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
                     if (Creature* Spawner = ObjectAccessor::GetCreature(*me, *itr))
                         Spawner->AI()->SetData(SETDATA_DATA, SETDATA_DESPAWN_ALL_SPAWNS);
 
@@ -307,17 +307,13 @@ public:
                     {
                         case EVENT_SET_CHANNELERS_SPAWNERS:
                         {
-                            for (std::list<uint64>::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
-                            {
+                            for (GuidList::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
                                 if (Creature* Channeler = ObjectAccessor::GetCreature(*me, *itr))
                                     Channeler->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
-                            }
 
-                            for (std::list<uint64>::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
-                            {
+                            for (GuidList::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
                                 if (Creature* Spawner = ObjectAccessor::GetCreature(*me, *itr))
                                     Spawner->AI()->SetData(SETDATA_DATA, SETDATA_START_SPAWNING);
-                            }
                             break;
                         }
                         case EVENT_START_ATTACK_AKAMA:
@@ -350,11 +346,11 @@ public:
                         if (Creature* Akama = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                             Akama->DespawnOrUnsummon();
 
-                        for (std::list<uint64>::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
+                        for (GuidList::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
                             if (Creature* Channeler = ObjectAccessor::GetCreature(*me, *itr))
                                 Channeler->DespawnOrUnsummon();
 
-                        for (std::list<uint64>::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
+                        for (GuidList::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
                             if (Creature* Spawner = ObjectAccessor::GetCreature(*me, *itr))
                                 Spawner->AI()->SetData(SETDATA_DATA, SETDATA_DESPAWN_ALL_SPAWNS);
 
@@ -379,7 +375,7 @@ public:
                             events.CancelEvent(EVENT_START_ATTACK_AKAMA);
                             events.ScheduleEvent(EVENT_ADD_THREAT, 100);
 
-                            for (std::list<uint64>::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
+                            for (GuidList::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
                                 if (Creature* Spawner = ObjectAccessor::GetCreature(*me, *itr))
                                     Spawner->AI()->SetData(SETDATA_DATA, SETDATA_STOP_SPAWNING);
                         }
@@ -395,8 +391,8 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            std::list<uint64> Channelers;
-            std::list<uint64> Spawners;
+            GuidList Channelers;
+            GuidList Spawners;
             bool akamaReached;
             bool combatStarted;
             bool HasKilledAkamaAndReseting;
@@ -763,7 +759,7 @@ public:
                 }
             }
 
-            summonerGuid     = 0;
+            summonerGuid.Clear();
             startedBanishing = false;
             switchToCombat   = false;
         }
@@ -841,7 +837,7 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            uint64 summonerGuid;
+            ObjectGuid summonerGuid;
             bool startedBanishing;
             bool switchToCombat;
     };
@@ -870,7 +866,7 @@ public:
 
         void Reset() override
         {
-            summonerGuid     = 0;
+            summonerGuid.Clear();
 
             if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                 AttackStart(target);
@@ -933,7 +929,7 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            uint64 summonerGuid;
+            ObjectGuid summonerGuid;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -960,7 +956,7 @@ public:
 
         void Reset() override
         {
-            summonerGuid     = 0;
+            summonerGuid.Clear();
 
             if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                 AttackStart(target);
@@ -1013,7 +1009,7 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            uint64 summonerGuid;
+            ObjectGuid summonerGuid;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -1040,7 +1036,7 @@ public:
 
         void Reset() override
         {
-            summonerGuid     = 0;
+            summonerGuid.Clear();
 
             if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                 AttackStart(target);
@@ -1093,7 +1089,7 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            uint64 summonerGuid;
+            ObjectGuid summonerGuid;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -1122,7 +1118,7 @@ public:
         {
             spiritMend = false;
             chainHeal  = false;
-            summonerGuid = 0;
+            summonerGuid.Clear();
 
             if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                 AttackStart(target);
@@ -1188,7 +1184,7 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            uint64 summonerGuid;
+            ObjectGuid summonerGuid;
             bool spiritMend;
             bool chainHeal;
     };
diff --git a/src/server/scripts/Outland/BlackTemple/boss_teron_gorefiend.cpp b/src/server/scripts/Outland/BlackTemple/boss_teron_gorefiend.cpp
index 0bbf2cb2a96..081dbc079a7 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_teron_gorefiend.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_teron_gorefiend.cpp
@@ -67,13 +67,13 @@ public:
 
         uint32 CheckTeronTimer;
         uint32 ShadowBoltTimer;
-        uint64 TeronGUID;
+        ObjectGuid TeronGUID;
 
         void Reset() override
         {
             CheckTeronTimer = 5000;
             ShadowBoltTimer = 12000;
-            TeronGUID = 0;
+            TeronGUID.Clear();
         }
 
         void EnterCombat(Unit* /*who*/) override { }
@@ -113,7 +113,7 @@ public:
             return;
         }
 
-        void SetTeronGUID(uint64 guid)
+        void SetTeronGUID(ObjectGuid guid)
         {
             TeronGUID = guid;
         }
@@ -134,16 +134,16 @@ public:
     {
         npc_shadowy_constructAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 GhostGUID;
-        uint64 TeronGUID;
+        ObjectGuid GhostGUID;
+        ObjectGuid TeronGUID;
 
         uint32 CheckPlayerTimer;
         uint32 CheckTeronTimer;
 
         void Reset() override
         {
-            GhostGUID = 0;
-            TeronGUID = 0;
+            GhostGUID.Clear();
+            TeronGUID.Clear();
 
             CheckPlayerTimer = 2000;
             CheckTeronTimer = 5000;
@@ -238,8 +238,8 @@ public:
         uint32 RandomYellTimer;
         uint32 AggroTimer;
 
-        uint64 AggroTargetGUID;
-        uint64 GhostGUID;                                       // Player that gets killed by Shadow of Death and gets turned into a ghost
+        ObjectGuid AggroTargetGUID;
+        ObjectGuid GhostGUID;                                       // Player that gets killed by Shadow of Death and gets turned into a ghost
 
         bool Intro;
         bool Done;
@@ -260,7 +260,7 @@ public:
             me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
 
             AggroTimer = 20000;
-            AggroTargetGUID = 0;
+            AggroTargetGUID.Clear();
             Intro = false;
             Done = false;
         }
diff --git a/src/server/scripts/Outland/BlackTemple/boss_warlord_najentus.cpp b/src/server/scripts/Outland/BlackTemple/boss_warlord_najentus.cpp
index 497b3f9e489..0f80e541261 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_warlord_najentus.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_warlord_najentus.cpp
@@ -67,13 +67,12 @@ public:
     {

         boss_najentusAI(Creature* creature) : BossAI(creature, DATA_HIGH_WARLORD_NAJENTUS)

         {

-            SpineTargetGUID = 0;

         }

 

         void Reset() override

         {

             _Reset();

-            SpineTargetGUID = 0;

+            SpineTargetGUID.Clear();

         }

 

         void KilledUnit(Unit* /*victim*/) override

@@ -115,7 +114,7 @@ public:
             Unit* target = ObjectAccessor::GetUnit(*me, SpineTargetGUID);

             if (target && target->HasAura(SPELL_IMPALING_SPINE))

                 target->RemoveAurasDueToSpell(SPELL_IMPALING_SPINE);

-            SpineTargetGUID=0;

+            SpineTargetGUID.Clear();

             return true;

         }

 

@@ -181,7 +180,7 @@ public:
         }

 

     private:

-        uint64 SpineTargetGUID;

+        ObjectGuid SpineTargetGUID;

     };

 

     CreatureAI* GetAI(Creature* creature) const override

diff --git a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_fathomlord_karathress.cpp b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_fathomlord_karathress.cpp
index 601d52f58af..83b8b1847b5 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_fathomlord_karathress.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_fathomlord_karathress.cpp
@@ -112,9 +112,6 @@ public:
         boss_fathomlord_karathressAI(Creature* creature) : ScriptedAI(creature)
         {
             instance = creature->GetInstanceScript();
-            Advisors[0] = 0;
-            Advisors[1] = 0;
-            Advisors[2] = 0;
         }
 
         InstanceScript* instance;
@@ -125,7 +122,7 @@ public:
 
         bool BlessingOfTides;
 
-        uint64 Advisors[MAX_ADVISORS];
+        ObjectGuid Advisors[MAX_ADVISORS];
 
         void Reset() override
         {
@@ -135,7 +132,7 @@ public:
 
             BlessingOfTides = false;
 
-            uint64 RAdvisors[MAX_ADVISORS];
+            ObjectGuid RAdvisors[MAX_ADVISORS];
             RAdvisors[0] = instance->GetGuidData(DATA_SHARKKIS);
             RAdvisors[1] = instance->GetGuidData(DATA_TIDALVESS);
             RAdvisors[2] = instance->GetGuidData(DATA_CARIBDIS);
@@ -308,7 +305,6 @@ public:
         boss_fathomguard_sharkkisAI(Creature* creature) : ScriptedAI(creature)
         {
             instance = creature->GetInstanceScript();
-            SummonedPet = 0;
         }
 
         InstanceScript* instance;
@@ -320,7 +316,7 @@ public:
 
         bool pet;
 
-        uint64 SummonedPet;
+        ObjectGuid SummonedPet;
 
         void Reset() override
         {
@@ -335,7 +331,7 @@ public:
             if (Pet && Pet->IsAlive())
                 Pet->DealDamage(Pet, Pet->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
 
-            SummonedPet = 0;
+            SummonedPet.Clear();
 
             instance->SetData(DATA_KARATHRESSEVENT, NOT_STARTED);
         }
@@ -515,7 +511,7 @@ public:
             if (Spitfire_Timer <= diff)
             {
                 DoCast(me, SPELL_SPITFIRE_TOTEM);
-                if (Unit* SpitfireTotem = ObjectAccessor::GetUnit(*me, CREATURE_SPITFIRE_TOTEM))
+                if (Unit* SpitfireTotem = me->FindNearestCreature(CREATURE_SPITFIRE_TOTEM, 100.0f))
                     SpitfireTotem->ToCreature()->AI()->AttackStart(me->GetVictim());
 
                 Spitfire_Timer = 60000;
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_hydross_the_unstable.cpp b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_hydross_the_unstable.cpp
index bcde75584fb..cea6a1854a1 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_hydross_the_unstable.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_hydross_the_unstable.cpp
@@ -94,13 +94,11 @@ public:
         boss_hydross_the_unstableAI(Creature* creature) : ScriptedAI(creature), Summons(me)
         {
             instance = creature->GetInstanceScript();
-            beams[0] = 0;
-            beams[1] = 0;
         }
 
         InstanceScript* instance;
 
-        uint64 beams[2];
+        ObjectGuid beams[2];
         uint32 PosCheck_Timer;
         uint32 MarkOfHydross_Timer;
         uint32 MarkOfCorruption_Timer;
@@ -116,8 +114,8 @@ public:
         void Reset() override
         {
             DeSummonBeams();
-            beams[0] = 0;
-            beams[1] = 0;
+            beams[0].Clear();
+            beams[1].Clear();
             PosCheck_Timer = 2500;
             MarkOfHydross_Timer = 15000;
             MarkOfCorruption_Timer = 15000;
@@ -147,7 +145,7 @@ public:
                 beamer->CastSpell(me, SPELL_BLUE_BEAM, true);
                 beamer->SetDisplayId(11686);  //invisible
                 beamer->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
-                beams[0]=beamer->GetGUID();
+                beams[0] = beamer->GetGUID();
             }
             beamer = me->SummonCreature(ENTRY_BEAM_DUMMY, -219.918f, -371.308f, 22.0042f, 2.73072f, TEMPSUMMON_CORPSE_DESPAWN, 0);
             if (beamer)
@@ -155,7 +153,7 @@ public:
                 beamer->CastSpell(me, SPELL_BLUE_BEAM, true);
                 beamer->SetDisplayId(11686);  //invisible
                 beamer->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
-                beams[1]=beamer->GetGUID();
+                beams[1] = beamer->GetGUID();
             }
         }
         void DeSummonBeams()
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_lady_vashj.cpp b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_lady_vashj.cpp
index 06ffc75a366..4630620c585 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_lady_vashj.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_lady_vashj.cpp
@@ -151,13 +151,11 @@ public:
             Intro = false;
             JustCreated = true;
             creature->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE); // set it only once on Creature create (no need do intro if wiped)
-            for (uint8 i = 0; i < 4; ++i)
-                ShieldGeneratorChannel[i] = 0;
         }
 
         InstanceScript* instance;
 
-        uint64 ShieldGeneratorChannel[4];
+        ObjectGuid ShieldGeneratorChannel[4];
 
         uint32 AggroTimer;
         uint32 ShockBlastTimer;
@@ -210,7 +208,7 @@ public:
                     if (Unit* remo = ObjectAccessor::GetUnit(*me, ShieldGeneratorChannel[i]))
                     {
                         remo->setDeathState(JUST_DIED);
-                        ShieldGeneratorChannel[i] = 0;
+                        ShieldGeneratorChannel[i].Clear();
                     }
                 }
             }
@@ -565,7 +563,7 @@ public:
         uint32 Phase;
         float X, Y, Z;
 
-        uint64 VashjGUID;
+        ObjectGuid VashjGUID;
 
         void Reset() override
         {
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_leotheras_the_blind.cpp b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_leotheras_the_blind.cpp
index 119c59e6a64..9f51155b334 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_leotheras_the_blind.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_leotheras_the_blind.cpp
@@ -83,13 +83,12 @@ public:
     {
         npc_inner_demonAI(Creature* creature) : ScriptedAI(creature)
         {
-            victimGUID = 0;
         }
 
         uint32 ShadowBolt_Timer;
 
         uint32 Link_Timer;
-        uint64 victimGUID;
+        ObjectGuid victimGUID;
 
         void Reset() override
         {
@@ -190,10 +189,6 @@ public:
         {
             creature->GetPosition(x, y, z);
             instance = creature->GetInstanceScript();
-            Demon = 0;
-
-            for (uint8 i = 0; i < 3; ++i)//clear guids
-                SpellBinderGUID[i] = 0;
         }
 
         InstanceScript* instance;
@@ -213,10 +208,10 @@ public:
         bool EnrageUsed;
         float x, y, z;
 
-        uint64 InnderDemon[5];
+        ObjectGuid InnderDemon[5];
         uint32 InnerDemon_Count;
-        uint64 Demon;
-        uint64 SpellBinderGUID[3];
+        ObjectGuid Demon;
+        ObjectGuid SpellBinderGUID[3];
 
         void Reset() override
         {
@@ -349,13 +344,12 @@ public:
             {
                 if (InnderDemon[i])
                 {
-                        //delete creature
-                        Creature* creature = ObjectAccessor::GetCreature((*me), InnderDemon[i]);
-                        if (creature && creature->IsAlive())
-                        {
-                            creature->DespawnOrUnsummon();
-                        }
-                        InnderDemon[i] = 0;
+                    //delete creature
+                    Creature* creature = ObjectAccessor::GetCreature((*me), InnderDemon[i]);
+                    if (creature && creature->IsAlive())
+                        creature->DespawnOrUnsummon();
+
+                    InnderDemon[i].Clear();
                 }
             }
 
@@ -364,9 +358,9 @@ public:
 
         void CastConsumingMadness() //remove this once SPELL_INSIDIOUS_WHISPER is supported by core
         {
-            for (uint8 i=0; i<5; ++i)
+            for (uint8 i = 0; i < 5; ++i)
             {
-                if (InnderDemon[i] > 0)
+                if (InnderDemon[i])
                 {
                     Creature* unit = ObjectAccessor::GetCreature((*me), InnderDemon[i]);
                     if (unit && unit->IsAlive())
@@ -481,7 +475,7 @@ public:
                     if (SwitchToDemon_Timer <= diff)
                     {
                         //switch to demon form
-                        me->RemoveAurasDueToSpell(SPELL_WHIRLWIND, 0);
+                        me->RemoveAurasDueToSpell(SPELL_WHIRLWIND);
                         me->SetDisplayId(MODEL_DEMON);
                         Talk(SAY_SWITCH_TO_DEMON);
                         me->SetUInt32Value(UNIT_VIRTUAL_ITEM_SLOT_ID  , 0);
@@ -576,8 +570,8 @@ public:
                 Creature* Copy = NULL;
                 Copy = DoSpawnCreature(DEMON_FORM, 0, 0, 0, 0, TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 6000);
                 if (Copy)
-                 {
-                     Demon = Copy->GetGUID();
+                {
+                    Demon = Copy->GetGUID();
                     if (me->GetVictim())
                         Copy->AI()->AttackStart(me->GetVictim());
                 }
@@ -682,13 +676,12 @@ public:
         npc_greyheart_spellbinderAI(Creature* creature) : ScriptedAI(creature)
         {
             instance = creature->GetInstanceScript();
-            leotherasGUID = 0;
             AddedBanish = false;
         }
 
         InstanceScript* instance;
 
-        uint64 leotherasGUID;
+        ObjectGuid leotherasGUID;
 
         uint32 Mindblast_Timer;
         uint32 Earthshock_Timer;
@@ -700,7 +693,7 @@ public:
             Mindblast_Timer  = urand(3000, 8000);
             Earthshock_Timer = urand(5000, 10000);
 
-            instance->SetGuidData(DATA_LEOTHERAS_EVENT_STARTER, 0);
+            instance->SetGuidData(DATA_LEOTHERAS_EVENT_STARTER, ObjectGuid::Empty);
             Creature* leotheras = ObjectAccessor::GetCreature(*me, leotherasGUID);
             if (leotheras && leotheras->IsAlive())
                 ENSURE_AI(boss_leotheras_the_blind::boss_leotheras_the_blindAI, leotheras->AI())->CheckChannelers(/*false*/);
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_morogrim_tidewalker.cpp b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_morogrim_tidewalker.cpp
index d501b919614..0a538ac0c39 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_morogrim_tidewalker.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_morogrim_tidewalker.cpp
@@ -215,8 +215,8 @@ public:
                 {
                     //Teleport 4 players under the waterfalls
                     Unit* target;
-                    std::set<uint64> list;
-                    std::set<uint64>::const_iterator itr;
+                    GuidSet targets;
+                    GuidSet::const_iterator itr;
                     for (uint8 i = 0; i < 4; ++i)
                     {
                         counter = 0;
@@ -226,13 +226,13 @@ public:
                             if (counter < Playercount)
                                 break;
                             if (target)
-                                itr = list.find(target->GetGUID());
+                                itr = targets.find(target->GetGUID());
                             ++counter;
-                        } while (itr != list.end());
+                        } while (itr != targets.end());
 
                         if (target)
                         {
-                            list.insert(target->GetGUID());
+                            targets.insert(target->GetGUID());
                             ApplyWateryGrave(target, i);
                         }
                     }
@@ -253,8 +253,8 @@ public:
                 if (WateryGlobules_Timer <= diff)
                 {
                     Unit* pGlobuleTarget;
-                    std::set<uint64> globulelist;
-                    std::set<uint64>::const_iterator itr;
+                    GuidSet globules;
+                    GuidSet::const_iterator itr;
                     for (uint8 g = 0; g < 4; g++)  //one unit can't cast more than one spell per update, so some players have to cast for us XD
                     {
                         counter = 0;
@@ -262,14 +262,14 @@ public:
                         {
                             pGlobuleTarget = SelectTarget(SELECT_TARGET_RANDOM, 0, 50, true);
                             if (pGlobuleTarget)
-                                itr = globulelist.find(pGlobuleTarget->GetGUID());
+                                itr = globules.find(pGlobuleTarget->GetGUID());
                             if (counter > Playercount)
                                 break;
                             ++counter;
-                        } while (itr != globulelist.end());
+                        } while (itr != globules.end());
                         if (pGlobuleTarget)
                         {
-                            globulelist.insert(pGlobuleTarget->GetGUID());
+                            globules.insert(pGlobuleTarget->GetGUID());
                             pGlobuleTarget->CastSpell(pGlobuleTarget, globulespell[g], true);
                         }
                     }
diff --git a/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp b/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp
index 7090a693876..d3b11d481fb 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp
@@ -54,7 +54,7 @@ public:
 
     struct boss_the_black_stalkerAI : public ScriptedAI
     {
-        boss_the_black_stalkerAI(Creature* creature) : ScriptedAI(creature)
+        boss_the_black_stalkerAI(Creature* creature) : ScriptedAI(creature), Striders(creature)
         {
         }
 
@@ -62,11 +62,11 @@ public:
         uint32 Levitate_Timer;
         uint32 ChainLightning_Timer;
         uint32 StaticCharge_Timer;
-        uint64 LevitatedTarget;
+        ObjectGuid LevitatedTarget;
         uint32 LevitatedTarget_Timer;
         bool InAir;
         uint32 check_Timer;
-        std::list<uint64> Striders;
+        SummonList Striders;
 
         void Reset() override
         {
@@ -75,9 +75,9 @@ public:
             StaticCharge_Timer = 10000;
             SporeStriders_Timer = 10000 + rand32() % 5000;
             check_Timer = 5000;
-            LevitatedTarget = 0;
+            LevitatedTarget.Clear();
             LevitatedTarget_Timer = 0;
-            Striders.clear();
+            Striders.DespawnAll();
         }
 
         void EnterCombat(Unit* /*who*/) override { }
@@ -86,7 +86,7 @@ public:
         {
             if (summon && summon->GetEntry() == ENTRY_SPORE_STRIDER)
             {
-                Striders.push_back(summon->GetGUID());
+                Striders.Summon(summon);
                 if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 1))
                     summon->AI()->AttackStart(target);
                 else
@@ -97,9 +97,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            for (std::list<uint64>::const_iterator i = Striders.begin(); i != Striders.end(); ++i)
-                if (Creature* strider = ObjectAccessor::GetCreature(*me, *i))
-                    strider->DisappearAndDie();
+            Striders.DespawnAll();
         }
 
         void UpdateAI(uint32 diff) override
@@ -136,13 +134,13 @@ public:
                     {
                         if (!target->HasAura(SPELL_LEVITATE))
                         {
-                            LevitatedTarget = 0;
+                            LevitatedTarget.Clear();
                             return;
                         }
                         if (InAir)
                         {
                             target->AddAura(SPELL_SUSPENSION, target);
-                            LevitatedTarget = 0;
+                            LevitatedTarget.Clear();
                         }
                         else
                         {
@@ -152,7 +150,7 @@ public:
                         }
                     }
                     else
-                        LevitatedTarget = 0;
+                        LevitatedTarget.Clear();
                 } else LevitatedTarget_Timer -= diff;
             }
             if (Levitate_Timer <= diff)
diff --git a/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_kelidan_the_breaker.cpp b/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_kelidan_the_breaker.cpp
index b2f199008d0..da7074b131f 100644
--- a/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_kelidan_the_breaker.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_kelidan_the_breaker.cpp
@@ -65,8 +65,6 @@ class boss_kelidan_the_breaker : public CreatureScript
         {
             boss_kelidan_the_breakerAI(Creature* creature) : BossAI(creature, DATA_KELIDAN_THE_BREAKER)
             {
-                for (uint8 i = 0; i < 5; ++i)
-                    Channelers[i] = 0;
             }
 
             uint32 ShadowVolley_Timer;
@@ -76,7 +74,7 @@ class boss_kelidan_the_breaker : public CreatureScript
             uint32 check_Timer;
             bool Firenova;
             bool addYell;
-            uint64 Channelers[5];
+            ObjectGuid Channelers[5];
 
             void Reset() override
             {
@@ -116,7 +114,7 @@ class boss_kelidan_the_breaker : public CreatureScript
                     addYell = true;
                     Talk(SAY_ADD_AGGRO);
                 }
-                for (uint8 i=0; i<5; ++i)
+                for (uint8 i = 0; i<5; ++i)
                 {
                     Creature* channeler = ObjectAccessor::GetCreature(*me, Channelers[i]);
                     if (who && channeler && !channeler->IsInCombat())
@@ -126,7 +124,7 @@ class boss_kelidan_the_breaker : public CreatureScript
 
             void ChannelerDied(Unit* killer)
             {
-                for (uint8 i=0; i<5; ++i)
+                for (uint8 i = 0; i < 5; ++i)
                 {
                     Creature* channeler = ObjectAccessor::GetCreature(*me, Channelers[i]);
                     if (channeler && channeler->IsAlive())
@@ -138,25 +136,25 @@ class boss_kelidan_the_breaker : public CreatureScript
                     AttackStart(killer);
             }
 
-            uint64 GetChanneled(Creature* channeler1)
+            ObjectGuid GetChanneled(Creature* channeler1)
             {
                 SummonChannelers();
                 if (!channeler1)
-                    return 0;
+                    return ObjectGuid::Empty;
 
                 uint8 i;
-                for (i=0; i<5; ++i)
+                for (i = 0; i < 5; ++i)
                 {
                     Creature* channeler = ObjectAccessor::GetCreature(*me, Channelers[i]);
                     if (channeler && channeler->GetGUID() == channeler1->GetGUID())
                         break;
                 }
-                return Channelers[(i+2)%5];
+                return Channelers[(i + 2) % 5];
             }
 
             void SummonChannelers()
             {
-                for (uint8 i=0; i<5; ++i)
+                for (uint8 i = 0; i < 5; ++i)
                 {
                     Creature* channeler = ObjectAccessor::GetCreature(*me, Channelers[i]);
                     if (!channeler || channeler->isDead())
@@ -164,7 +162,7 @@ class boss_kelidan_the_breaker : public CreatureScript
                     if (channeler)
                         Channelers[i] = channeler->GetGUID();
                     else
-                        Channelers[i] = 0;
+                        Channelers[i].Clear();
                 }
             }
 
@@ -310,16 +308,19 @@ class npc_shadowmoon_channeler : public CreatureScript
                     if (check_Timer <= diff)
                     {
                         if (!me->IsNonMeleeSpellCast(false))
+                        {
                             if (Creature* Kelidan = me->FindNearestCreature(ENTRY_KELIDAN, 100))
                             {
-                                uint64 channeler = ENSURE_AI(boss_kelidan_the_breaker::boss_kelidan_the_breakerAI, Kelidan->AI())->GetChanneled(me);
+                                ObjectGuid channeler = ENSURE_AI(boss_kelidan_the_breaker::boss_kelidan_the_breakerAI, Kelidan->AI())->GetChanneled(me);
                                 if (Unit* channeled = ObjectAccessor::GetUnit(*me, channeler))
                                     DoCast(channeled, SPELL_CHANNELING);
                             }
+                        }
                         check_Timer = 5000;
                     }
                     else
                         check_Timer -= diff;
+
                     return;
                 }
 
diff --git a/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_omor_the_unscarred.cpp b/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_omor_the_unscarred.cpp
index 237aa506589..061d6a6a9a8 100644
--- a/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_omor_the_unscarred.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_omor_the_unscarred.cpp
@@ -74,7 +74,7 @@ class boss_omor_the_unscarred : public CreatureScript
                 Shadowbolt_Timer = 2000;
                 Summon_Timer = 10000;
                 SummonedCount = 0;
-                PlayerGUID = 0;
+                PlayerGUID.Clear();
                 CanPullBack = false;
 
                 _Reset();
@@ -141,7 +141,7 @@ class boss_omor_the_unscarred : public CreatureScript
                                 DoCast(temp, SPELL_SHADOW_WHIP);
                             }
                         }
-                        PlayerGUID = 0;
+                        PlayerGUID.Clear();
                         ShadowWhip_Timer = 2000;
                         CanPullBack = false;
                     }
@@ -218,7 +218,7 @@ class boss_omor_the_unscarred : public CreatureScript
                 uint32 Shadowbolt_Timer;
                 uint32 Summon_Timer;
                 uint32 SummonedCount;
-                uint64 PlayerGUID;
+                ObjectGuid PlayerGUID;
                 bool CanPullBack;
         };
 
diff --git a/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_vazruden_the_herald.cpp b/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_vazruden_the_herald.cpp
index d2a93caf7a3..44c93dc77c9 100644
--- a/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_vazruden_the_herald.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_vazruden_the_herald.cpp
@@ -70,7 +70,6 @@ class boss_nazan : public CreatureScript
         {
             boss_nazanAI(Creature* creature) : BossAI(creature, DATA_NAZAN)
             {
-                VazrudenGUID = 0;
                 flight = true;
             }
 
@@ -183,7 +182,7 @@ class boss_nazan : public CreatureScript
                 uint32 Fly_Timer;
                 uint32 Turn_Timer;
                 bool flight;
-                uint64 VazrudenGUID;
+                ObjectGuid VazrudenGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -282,8 +281,6 @@ class boss_vazruden_the_herald : public CreatureScript
                 summoned = false;
                 sentryDown = false;
                 lootSpawned = false;
-                NazanGUID = 0;
-                VazrudenGUID = 0;
             }
 
             void Reset() override
@@ -304,7 +301,7 @@ class boss_vazruden_the_herald : public CreatureScript
                     if (Nazan)
                     {
                         Nazan->DisappearAndDie();
-                        NazanGUID = 0;
+                        NazanGUID.Clear();
                     }
 
                     Creature* Vazruden = ObjectAccessor::GetCreature(*me, VazrudenGUID);
@@ -313,7 +310,7 @@ class boss_vazruden_the_herald : public CreatureScript
                     if (Vazruden)
                     {
                         Vazruden->DisappearAndDie();
-                        VazrudenGUID = 0;
+                        VazrudenGUID.Clear();
                     }
                     summoned = false;
                     me->ClearUnitState(UNIT_STATE_ROOT);
@@ -435,8 +432,8 @@ class boss_vazruden_the_herald : public CreatureScript
                 uint32 waypoint;
                 uint32 check;
                 bool sentryDown;
-                uint64 NazanGUID;
-                uint64 VazrudenGUID;
+                ObjectGuid NazanGUID;
+                ObjectGuid VazrudenGUID;
                 bool summoned;
                 bool lootSpawned;
         };
diff --git a/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/boss_magtheridon.cpp b/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/boss_magtheridon.cpp
index 297e1443c90..50cdcfe121b 100644
--- a/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/boss_magtheridon.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/boss_magtheridon.cpp
@@ -85,7 +85,7 @@ enum Spells
 //count of clickers needed to interrupt blast nova
 #define CLICKERS_COUNT              5
 
-typedef std::map<uint64, uint64> CubeMap;
+typedef std::map<ObjectGuid, ObjectGuid> CubeMap;
 
 class npc_abyssal : public CreatureScript
 {
@@ -253,10 +253,10 @@ class boss_magtheridon : public CreatureScript
                 instance->SetData(DATA_COLLAPSE, false);
             }
 
-            void SetClicker(uint64 cubeGUID, uint64 clickerGUID)
+            void SetClicker(ObjectGuid cubeGUID, ObjectGuid clickerGUID)
             {
                 // to avoid multiclicks from 1 cube
-                if (uint64 guid = Cube[cubeGUID])
+                if (ObjectGuid guid = Cube[cubeGUID])
                     DebuffClicker(ObjectAccessor::GetUnit(*me, guid));
                 Cube[cubeGUID] = clickerGUID;
                 NeedCheckCube = true;
@@ -284,7 +284,7 @@ class boss_magtheridon : public CreatureScript
                     if (!clicker || !clicker->HasAura(SPELL_SHADOW_GRASP))
                     {
                         DebuffClicker(clicker);
-                        (*i).second = 0;
+                        (*i).second.Clear();
                     }
                     else
                         ++ClickerNum;
diff --git a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warbringer_omrogg.cpp b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warbringer_omrogg.cpp
index d61c40f8e3b..f60c65b0b7a 100644
--- a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warbringer_omrogg.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warbringer_omrogg.cpp
@@ -136,8 +136,6 @@ class boss_warbringer_omrogg : public CreatureScript
         {
             boss_warbringer_omroggAI(Creature* creature) : BossAI(creature, DATA_OMROGG)
             {
-                LeftHeadGUID  = 0;
-                RightHeadGUID = 0;
             }
 
             void Reset() override
@@ -145,13 +143,13 @@ class boss_warbringer_omrogg : public CreatureScript
                 if (Unit* LeftHead  = ObjectAccessor::GetUnit(*me, LeftHeadGUID))
                 {
                     LeftHead->setDeathState(JUST_DIED);
-                    LeftHeadGUID = 0;
+                    LeftHeadGUID.Clear();
                 }
 
                 if (Unit* RightHead  = ObjectAccessor::GetUnit(*me, RightHeadGUID))
                 {
                     RightHead->setDeathState(JUST_DIED);
-                    RightHeadGUID = 0;
+                    RightHeadGUID.Clear();
                 }
 
                 AggroYell = false;
@@ -363,8 +361,8 @@ class boss_warbringer_omrogg : public CreatureScript
             }
 
             private:
-                uint64 LeftHeadGUID;
-                uint64 RightHeadGUID;
+                ObjectGuid LeftHeadGUID;
+                ObjectGuid RightHeadGUID;
                 int iaggro;
                 int ithreat;
                 int ikilling;
diff --git a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warchief_kargath_bladefist.cpp b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warchief_kargath_bladefist.cpp
index f1dfcc2b391..7145ebfd7aa 100644
--- a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warchief_kargath_bladefist.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warchief_kargath_bladefist.cpp
@@ -143,7 +143,7 @@ class boss_warchief_kargath_bladefist : public CreatureScript
 
             void removeAdds()
             {
-                for (std::vector<uint64>::const_iterator itr = adds.begin(); itr!= adds.end(); ++itr)
+                for (GuidVector::const_iterator itr = adds.begin(); itr!= adds.end(); ++itr)
                 {
                     Creature* creature = ObjectAccessor::GetCreature(*me, *itr);
                     if (creature && creature->IsAlive())
@@ -155,7 +155,7 @@ class boss_warchief_kargath_bladefist : public CreatureScript
                 }
                 adds.clear();
 
-                for (std::vector<uint64>::const_iterator itr = assassins.begin(); itr!= assassins.end(); ++itr)
+                for (GuidVector::const_iterator itr = assassins.begin(); itr!= assassins.end(); ++itr)
                 {
                     Creature* creature = ObjectAccessor::GetCreature(*me, *itr);
                     if (creature && creature->IsAlive())
@@ -295,8 +295,8 @@ class boss_warchief_kargath_bladefist : public CreatureScript
             }
 
             private:
-                std::vector<uint64> adds;
-                std::vector<uint64> assassins;
+                GuidVector adds;
+                GuidVector assassins;
                 uint32 Charge_timer;
                 uint32 Blade_Dance_Timer;
                 uint32 Summon_Assistant_Timer;
diff --git a/src/server/scripts/Outland/TempestKeep/Eye/boss_kaelthas.cpp b/src/server/scripts/Outland/TempestKeep/Eye/boss_kaelthas.cpp
index 4ede91e3b9c..8b23ee172af 100644
--- a/src/server/scripts/Outland/TempestKeep/Eye/boss_kaelthas.cpp
+++ b/src/server/scripts/Outland/TempestKeep/Eye/boss_kaelthas.cpp
@@ -163,7 +163,7 @@ struct advisorbase_ai : public ScriptedAI
     bool FakeDeath;
     bool m_bDoubled_Health;
     uint32 DelayRes_Timer;
-    uint64 DelayRes_Target;
+    ObjectGuid DelayRes_Target;
 
     void Reset() override
     {
@@ -175,7 +175,7 @@ struct advisorbase_ai : public ScriptedAI
 
         FakeDeath = false;
         DelayRes_Timer = 0;
-        DelayRes_Target = 0;
+        DelayRes_Target.Clear();
 
         me->SetStandState(UNIT_STAND_STATE_STAND);
         me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
@@ -245,7 +245,7 @@ struct advisorbase_ai : public ScriptedAI
             me->ModifyAuraState(AURA_STATE_HEALTHLESS_35_PERCENT, false);
             me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
             me->ClearAllReactives();
-            me->SetTarget(0);
+            me->SetTarget(ObjectGuid::Empty);
             me->GetMotionMaster()->Clear();
             me->GetMotionMaster()->MoveIdle();
             me->SetStandState(UNIT_STAND_STATE_DEAD);
@@ -290,7 +290,6 @@ class boss_kaelthas : public CreatureScript
             boss_kaelthasAI(Creature* creature) : ScriptedAI(creature), summons(me)
             {
                 instance = creature->GetInstanceScript();
-                memset(&m_auiAdvisorGuid, 0, sizeof(m_auiAdvisorGuid));
             }
 
             InstanceScript* instance;
@@ -316,7 +315,7 @@ class boss_kaelthas : public CreatureScript
 
             SummonList summons;
 
-            uint64 m_auiAdvisorGuid[MAX_ADVISORS];
+            ObjectGuid m_auiAdvisorGuid[MAX_ADVISORS];
 
             void Reset() override
             {
diff --git a/src/server/scripts/Outland/TempestKeep/Eye/boss_void_reaver.cpp b/src/server/scripts/Outland/TempestKeep/Eye/boss_void_reaver.cpp
index 6b78706b437..b518eb1cb8b 100644
--- a/src/server/scripts/Outland/TempestKeep/Eye/boss_void_reaver.cpp
+++ b/src/server/scripts/Outland/TempestKeep/Eye/boss_void_reaver.cpp
@@ -137,7 +137,7 @@ class boss_void_reaver : public CreatureScript
                         target = me->GetVictim();
 
                     if (target)
-                        me->CastSpell(target, SPELL_ARCANE_ORB, false, NULL, NULL, 0);
+                        me->CastSpell(target, SPELL_ARCANE_ORB, false, NULL, NULL);
                     ArcaneOrb_Timer = 3000;
                 }
                 else
diff --git a/src/server/scripts/Outland/TempestKeep/botanica/boss_high_botanist_freywinn.cpp b/src/server/scripts/Outland/TempestKeep/botanica/boss_high_botanist_freywinn.cpp
index 0c322877808..c0591f7b874 100644
--- a/src/server/scripts/Outland/TempestKeep/botanica/boss_high_botanist_freywinn.cpp
+++ b/src/server/scripts/Outland/TempestKeep/botanica/boss_high_botanist_freywinn.cpp
@@ -66,8 +66,6 @@ class boss_high_botanist_freywinn : public CreatureScript
         {
             boss_high_botanist_freywinnAI(Creature* creature) : BossAI(creature, DATA_HIGH_BOTANIST_FREYWINN) { }
 
-            std::list<uint64> Adds_List;
-
             uint32 SummonSeedling_Timer;
             uint32 TreeForm_Timer;
             uint32 MoveCheck_Timer;
@@ -76,7 +74,7 @@ class boss_high_botanist_freywinn : public CreatureScript
 
             void Reset() override
             {
-                Adds_List.clear();
+                summons.DespawnAll();
 
                 SummonSeedling_Timer = 6000;
                 TreeForm_Timer = 30000;
@@ -93,7 +91,12 @@ class boss_high_botanist_freywinn : public CreatureScript
             void JustSummoned(Creature* summoned) override
             {
                 if (summoned->GetEntry() == NPC_FRAYER)
-                    Adds_List.push_back(summoned->GetGUID());
+                    summons.Summon(summoned);
+            }
+
+            void SummonedCreatureDespawn(Creature* summon) override
+            {
+                summons.Despawn(summon);
             }
 
             void DoSummonSeedling()
@@ -147,18 +150,15 @@ class boss_high_botanist_freywinn : public CreatureScript
                 {
                     if (MoveCheck_Timer <= diff)
                     {
-                        if (!Adds_List.empty())
+                        for (SummonList::iterator itr = summons.begin(); itr != summons.end(); ++itr)
                         {
-                            for (std::list<uint64>::iterator itr = Adds_List.begin(); itr != Adds_List.end(); ++itr)
+                            if (Unit* temp = ObjectAccessor::GetUnit(*me, *itr))
                             {
-                                if (Unit* temp = ObjectAccessor::GetUnit(*me, *itr))
+                                if (!temp->IsAlive())
                                 {
-                                    if (!temp->IsAlive())
-                                    {
-                                        Adds_List.erase(itr);
-                                        ++DeadAddsCount;
-                                        break;
-                                    }
+                                    summons.erase(itr);
+                                    ++DeadAddsCount;
+                                    break;
                                 }
                             }
                         }
@@ -168,7 +168,7 @@ class boss_high_botanist_freywinn : public CreatureScript
 
                         if (DeadAddsCount >= 3)
                         {
-                            Adds_List.clear();
+                            summons.DespawnAll();
                             DeadAddsCount = 0;
 
                             me->InterruptNonMeleeSpells(true);
diff --git a/src/server/scripts/Outland/TempestKeep/botanica/boss_warp_splinter.cpp b/src/server/scripts/Outland/TempestKeep/botanica/boss_warp_splinter.cpp
index 8bc9d0982e3..56c62bbf50f 100644
--- a/src/server/scripts/Outland/TempestKeep/botanica/boss_warp_splinter.cpp
+++ b/src/server/scripts/Outland/TempestKeep/botanica/boss_warp_splinter.cpp
@@ -74,10 +74,9 @@ class npc_warp_splinter_treant : public CreatureScript
         {
             npc_warp_splinter_treantAI(Creature* creature) : ScriptedAI(creature)
             {
-                WarpGuid = 0;
             }
 
-            uint64 WarpGuid;
+            ObjectGuid WarpGuid;
             uint32 check_Timer;
 
             void Reset() override