Scripts/Sunwell Plateau: Rewrite M'uru (#31323)

4 files changed, 745 insertions, 309 deletions

diff --git a/sql/updates/world/3.3.5/2025_11_08_00_world.sql b/sql/updates/world/3.3.5/2025_11_08_00_world.sql
new file mode 100644
index 00000000000..fabacf921c0
--- /dev/null
+++ b/sql/updates/world/3.3.5/2025_11_08_00_world.sql
@@ -0,0 +1,35 @@
+--
+UPDATE `creature_template_movement` SET `Rooted` = 1 WHERE `CreatureId` = 25741;
+
+UPDATE `spell_script_names` SET `ScriptName` = 'spell_muru_summon_blood_elves_periodic' WHERE `ScriptName` = 'spell_summon_blood_elves_periodic';
+UPDATE `spell_script_names` SET `ScriptName` = 'spell_muru_summon_blood_elves_script' WHERE `ScriptName` = 'spell_summon_blood_elves_script';
+UPDATE `spell_script_names` SET `ScriptName` = 'spell_muru_dark_fiend_magic' WHERE `ScriptName` = 'spell_dark_fiend_skin';
+UPDATE `spell_script_names` SET `ScriptName` = 'spell_muru_transform_visual_missile_periodic' WHERE `ScriptName` = 'spell_transform_visual_missile_periodic';
+
+UPDATE `spell_target_position` SET `PositionX` = 1723.2922, `PositionY` = 712.71094, `PositionZ` = 71.190320 WHERE `ID` = 46037;
+UPDATE `spell_target_position` SET `PositionX` = 1728.3705, `PositionY` = 707.41840, `PositionZ` = 71.190315 WHERE `ID` = 46038;
+UPDATE `spell_target_position` SET `PositionX` = 1905.3964, `PositionY` = 548.84240, `PositionZ` = 71.304535 WHERE `ID` = 46039;
+UPDATE `spell_target_position` SET `PositionX` = 1908.0374, `PositionY` = 547.56110, `PositionZ` = 71.310750 WHERE `ID` = 46040;
+
+UPDATE `creature_template` SET `AIName` = '', `ScriptName` = 'npc_void_spawn' WHERE `entry` = 25824;
+DELETE FROM `smart_scripts` WHERE `entryorguid` = 25824 AND `source_type` = 0;
+
+UPDATE `creature_template` SET `ScriptName` = 'npc_darkness' WHERE `entry` = 25879;
+
+UPDATE `creature_template` SET `ScriptName` = 'npc_singularity' WHERE `entry` = 25855;
+
+UPDATE `creature_template` SET `ScriptName` = 'npc_void_sentinel_summoner' WHERE `entry` = 25782;
+
+UPDATE `creature_template` SET `AIName` = '', `ScriptName` = 'npc_shadowsword_berserker' WHERE `entry` = 25798;
+DELETE FROM `smart_scripts` WHERE `entryorguid` = 25798 AND `source_type` = 0;
+
+UPDATE `creature_template` SET `AIName` = '', `ScriptName` = 'npc_shadowsword_fury_mage' WHERE `entry` = 25799;
+DELETE FROM `smart_scripts` WHERE `entryorguid` = 25799 AND `source_type` = 0;
+
+DELETE FROM `spell_linked_spell` WHERE `spell_trigger` IN (46228,46242,46262);
+
+DELETE FROM `spell_script_names` WHERE `ScriptName` = 'spell_muru_summon_void_sentinel_summoner';
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES
+(45978, 'spell_muru_summon_void_sentinel_summoner');
+
+UPDATE `creature_template` SET `speed_run` = 0.428571 WHERE `entry` = 25744;
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp
index 44c339f8310..0d0c98871ed 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp
@@ -15,166 +15,327 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+/*
+ * Combat timers requires to be revisited
+ * Singularity may be much trickier:
+    1. Check if singularity should change targets
+    2. Check if despawn timer depends on how much targets singularity hits by passive spells
+ * Check if Dark Fiend should change target
+ * Berserk for Entropius should be triggered from Entropius' AI since M'uru originally despawns after summoning Entropius,
+    NYI, currently triggered from M'uru's AI
+ */
+
 #include "ScriptMgr.h"
 #include "InstanceScript.h"
-#include "ObjectAccessor.h"
+#include "MotionMaster.h"
 #include "ScriptedCreature.h"
 #include "SpellAuraEffects.h"
 #include "SpellAuras.h"
+#include "SpellInfo.h"
 #include "SpellScript.h"
 #include "sunwell_plateau.h"
 
-enum Spells
+enum MuruSpells
 {
-    // Muru's spells
+    // M'uru - Initial
     SPELL_OPEN_PORTAL_PERIODIC                  = 45994,
     SPELL_DARKNESS_PERIODIC                     = 45998,
     SPELL_NEGATIVE_ENERGY_PERIODIC              = 46009,
-    SPELL_SUMMON_VOID_SPAWN                     = 46071,
-    SPELL_SUMMON_BLOOD_ELVES_SCRIPT             = 46050,
     SPELL_SUMMON_BLOOD_ELVES_PERIODIC           = 46041,
+
+    // M'uru - Combat
+    SPELL_BERSERK                               = 26662,
+
+    // M'uru - Transition
     SPELL_OPEN_ALL_PORTALS                      = 46177,
     SPELL_SUMMON_ENTROPIUS                      = 46217,
-    SPELL_ENRAGE                                = 26662,
-    SPELL_SUMMON_DARK_FIEND_0                   = 46000,
-    SPELL_SUMMON_DARK_FIEND_1                   = 46001,
-    SPELL_SUMMON_DARK_FIEND_2                   = 46002,
-    SPELL_SUMMON_DARK_FIEND_3                   = 46003,
-    SPELL_SUMMON_DARK_FIEND_4                   = 46004,
-    SPELL_SUMMON_DARK_FIEND_5                   = 46005,
-    SPELL_SUMMON_DARK_FIEND_6                   = 46006,
-    SPELL_SUMMON_DARK_FIEND_7                   = 46007,
-    SPELL_SUMMON_BERSERKER                      = 46037,
-    SPELL_SUMMON_BERSERKER_2                    = 46040,
-    SPELL_SUMMON_FURY_MAGE                      = 46038,
-    SPELL_SUMMON_FURY_MAGE_2                    = 46039,
 
-    // Entropius's spells
+    // Entropius - Initial
     SPELL_ENTROPIUS_COSMETIC_SPAWN              = 46223,
-    SPELL_DARKNESS_E                            = 46269,
     SPELL_NEGATIVE_ENERGY_PERIODIC_E            = 46284,
-    SPELL_NEGATIVE_ENERGY_DAMAGE                = 46285,
-    SPELL_BLACKHOLE                             = 46282,
-    SPELL_SUMMON_DARKFIEND_E                    = 46263,
 
-    // Myruu's Portal Target
+    // Entropius - Combat
+    SPELL_DARKNESS                              = 46269,
+    SPELL_BLACK_HOLE                            = 46282,
+
+    // M'uru Portal Target
+    SPELL_OPEN_PORTAL                           = 45976,
+    SPELL_OPEN_PORTAL_VISUAL                    = 45977,
     SPELL_SUMMON_VOID_SENTINEL_SUMMONER         = 45978,
     SPELL_SUMMON_VOID_SENTINEL_SUMMONER_VISUAL  = 45989,
-    SPELL_SUMMON_VOID_SENTINEL                  = 45988,
     SPELL_TRANSFORM_VISUAL_MISSILE              = 46205,
-    TRANSFORM_VISUAL_MISSILE_1                  = 46208,
-    TRANSFORM_VISUAL_MISSILE_2                  = 46178,
-    SPELL_OPEN_PORTAL                           = 45977,
-    SPELL_OPEN_PORTAL_2                         = 45976,
 
-    //Dark Fiend Spells
-    SPELL_DARKFIEND_DAMAGE                      = 45944,
-    SPELL_DARKFIEND_VISUAL                      = 45936,
-    SPELL_DARKFIEND_SKIN                        = 45934,
+    // Void Sentinel Summoner
+    SPELL_SUMMON_VOID_SENTINEL                  = 45988,
 
-    // Void Sentinel's spells
+    // Void Sentinel
     SPELL_SHADOW_PULSE_PERIODIC                 = 46086,
     SPELL_VOID_BLAST                            = 46161,
+    SPELL_SUMMON_VOID_SPAWN                     = 46071,
+
+    // Void Spawn
+    SPELL_SHADOW_BOLT_VOLLEY                    = 46082,
+
+    // Dark Fiend
+    SPELL_DARK_FIEND_MAGIC                      = 45934,
+    SPELL_DARK_FIEND_VISUAL                     = 45936,
+    SPELL_DARK_FIEND_TRAP                       = 45943,
+    SPELL_DARK_FIEND_DAMAGE                     = 45944,
+
+    // Darkness
+    SPELL_VOID_ZONE_PRE_EFFECT_VISUAL           = 46265,
+    SPELL_VOID_ZONE_PERIODIC                    = 46262,
+    SPELL_SUMMON_DARK_FIEND                     = 46263,
+
+    // Singularity
+    SPELL_BLACK_HOLE_SUMMON_VISUAL              = 46242,
+    SPELL_BLACK_HOLE_SUMMON_VISUAL_2            = 46247,
+    SPELL_BLACK_HOLE_PASSIVE                    = 46228,
+    SPELL_BLACK_HOLE_VISUAL_2                   = 46235,
+
+    // Shadowsword Berserker
+    SPELL_DUAL_WIELD_PASSIVE                    = 42459,
+    SPELL_FLURRY                                = 46160,
+
+    // Shadowsword Fury Mage
+    SPELL_FEL_FIREBALL                          = 46101,
+    SPELL_SPELL_FURY                            = 46102,
+
+    // Scripts
+    SPELL_SUMMON_BLOOD_ELVES_SCRIPT             = 46050,
+
+    SPELL_SUMMON_BERSERKER_1                    = 46037,
+    SPELL_SUMMON_BERSERKER_2                    = 46040,
+    SPELL_SUMMON_FURY_MAGE_1                    = 46038,
+    SPELL_SUMMON_FURY_MAGE_2                    = 46039,
 
-    //Black Hole Spells
-    SPELL_BLACKHOLE_SUMMON_VISUAL               = 46242,
-    SPELL_BLACKHOLE_SUMMON_VISUAL_2             = 46247,
-    SPELL_BLACKHOLE_PASSIVE                     = 46228,
-    SPELL_BLACK_HOLE_VISUAL_2                   = 46235
+    SPELL_SUMMON_DARK_FIEND_1                   = 46000,
+    SPELL_SUMMON_DARK_FIEND_2                   = 46001,
+    SPELL_SUMMON_DARK_FIEND_3                   = 46002,
+    SPELL_SUMMON_DARK_FIEND_4                   = 46003,
+    SPELL_SUMMON_DARK_FIEND_5                   = 46004,
+    SPELL_SUMMON_DARK_FIEND_6                   = 46005,
+    SPELL_SUMMON_DARK_FIEND_7                   = 46006,
+    SPELL_SUMMON_DARK_FIEND_8                   = 46007,
+
+    SPELL_TRANSFORM_VISUAL_MISSILE_1            = 46178,
+    SPELL_TRANSFORM_VISUAL_MISSILE_2            = 46208,
+
+    SPELL_NEGATIVE_ENERGY_DAMAGE                = 46285
 };
 
-enum Phases
+enum MuruEvents
 {
-    PHASE_ONE                                   = 1,
-    PHASE_TWO                                   = 2
+    // M'uru
+    EVENT_SUMMON_BLOOD_ELVES                    = 1,
+    EVENT_SUMMON_ENTROPIUS,
+    EVENT_SET_INVISIBLE,
+    EVENT_BERSERK,
+
+    // Entropius
+    EVENT_SPAWN_1,
+    EVENT_SPAWN_2,
+    EVENT_DARKNESS,
+    EVENT_BLACK_HOLE
 };
 
-enum Misc
+enum MuruMisc
 {
+    ACTION_BERSERK                              = 0,
+    ACTION_DISPELLED_MAGIC                      = 1,
+    ACTION_CANCEL_SUMMON                        = 2,
     MAX_VOID_SPAWNS                             = 6,
-    MAX_SUMMON_BLOOD_ELVES                      = 4,
-    MAX_SUMMON_DARK_FIEND                       = 8
+    NPC_WORLD_TRIGGER_MOVE_TO                   = 22515,
+    POINT_ROOM                                  = 0
 };
 
-uint32 const SummonDarkFiendSpells[MAX_SUMMON_DARK_FIEND] =
+static constexpr std::array<uint32, 8> SummonDarkFiendSpells =
 {
-    SPELL_SUMMON_DARK_FIEND_0,
     SPELL_SUMMON_DARK_FIEND_1,
     SPELL_SUMMON_DARK_FIEND_2,
     SPELL_SUMMON_DARK_FIEND_3,
     SPELL_SUMMON_DARK_FIEND_4,
     SPELL_SUMMON_DARK_FIEND_5,
     SPELL_SUMMON_DARK_FIEND_6,
-    SPELL_SUMMON_DARK_FIEND_7
+    SPELL_SUMMON_DARK_FIEND_7,
+    SPELL_SUMMON_DARK_FIEND_8
 };
 
-uint32 const SummonBloodElvesSpells[MAX_SUMMON_BLOOD_ELVES] =
+void DoResetPortals(Creature* creature)
 {
-    SPELL_SUMMON_BERSERKER,
-    SPELL_SUMMON_BERSERKER_2,
-    SPELL_SUMMON_FURY_MAGE,
-    SPELL_SUMMON_FURY_MAGE_2
-};
+    std::vector<Creature*> portals;
+    GetCreatureListWithEntryInGrid(portals, creature, NPC_MURU_PORTAL_TARGET, 100.0f);
+    for (Creature* portal : portals)
+        portal->RemoveAllAuras();
+}
+
+void DoDespawnSummons(Creature* creature)
+{
+    std::vector<Creature*> spawns;
+    GetCreatureListWithEntryInGrid(spawns, creature, NPC_ENTROPIUS, 250.0f);
+    GetCreatureListWithEntryInGrid(spawns, creature, NPC_VOID_SENTINEL_SUMMONER, 250.0f);
+    GetCreatureListWithEntryInGrid(spawns, creature, NPC_VOID_SENTINEL, 250.0f);
+    GetCreatureListWithEntryInGrid(spawns, creature, NPC_VOID_SPAWN, 250.0f);
+    GetCreatureListWithEntryInGrid(spawns, creature, NPC_DARK_FIEND, 250.0f);
+    GetCreatureListWithEntryInGrid(spawns, creature, NPC_DARKNESS, 250.0f);
+    GetCreatureListWithEntryInGrid(spawns, creature, NPC_SINGULARITY, 250.0f);
+    GetCreatureListWithEntryInGrid(spawns, creature, NPC_BERSERKER, 250.0f);
+    GetCreatureListWithEntryInGrid(spawns, creature, NPC_FURY_MAGE, 250.0f);
+    for (Creature* spawn : spawns)
+        spawn->DespawnOrUnsummon();
+
+    std::vector<Creature*> portals;
+    GetCreatureListWithEntryInGrid(portals, creature, NPC_MURU_PORTAL_TARGET, 100.0f);
+    for (Creature* portal : portals)
+        portal->AI()->DoAction(ACTION_CANCEL_SUMMON);
+}
 
-class VoidSpawnSummon : public BasicEvent
+// 25741 - M'uru
+struct boss_muru : public BossAI
 {
-    public:
-        explicit VoidSpawnSummon(Creature* owner)
-            : _owner(owner)
+    boss_muru(Creature* creature) : BossAI(creature, DATA_MURU), _isBerserkTriggered(false), _isInTransition(false) { }
+
+    void Reset() override
+    {
+        _Reset();
+
+        _isBerserkTriggered = false;
+        _isInTransition = false;
+    }
+
+    void JustEngagedWith(Unit* who) override
+    {
+        BossAI::JustEngagedWith(who);
+
+        DoCastSelf(SPELL_OPEN_PORTAL_PERIODIC);
+        DoCastSelf(SPELL_DARKNESS_PERIODIC);
+        DoCastSelf(SPELL_NEGATIVE_ENERGY_PERIODIC);
+
+        me->SetReactState(REACT_PASSIVE);
+
+        events.ScheduleEvent(EVENT_SUMMON_BLOOD_ELVES, 5s);
+        events.ScheduleEvent(EVENT_BERSERK, 10min);
+    }
+
+    void DamageTaken(Unit* /*done_by*/, uint32& damage, DamageEffectType /*damageType*/, SpellInfo const* /*spellInfo = nullptr*/) override
+    {
+        if (damage >= me->GetHealth())
         {
+            damage = me->GetHealth() - 1;
+
+            if (_isInTransition)
+                return;
+
+            _isInTransition = true;
+            me->RemoveAurasDueToSpell(SPELL_SUMMON_BLOOD_ELVES_PERIODIC);
+            me->RemoveAurasDueToSpell(SPELL_NEGATIVE_ENERGY_PERIODIC);
+            me->RemoveAurasDueToSpell(SPELL_DARKNESS_PERIODIC);
+            me->RemoveAurasDueToSpell(SPELL_OPEN_PORTAL_PERIODIC);
+            DoCastSelf(SPELL_OPEN_ALL_PORTALS);
+            me->SetUnitFlag(UNIT_FLAG_UNINTERACTIBLE);
+            events.CancelEvent(EVENT_SUMMON_BLOOD_ELVES);
+            events.ScheduleEvent(EVENT_SUMMON_ENTROPIUS, 6s);
         }
+    }
+
+    void OnSpellCast(SpellInfo const* spell) override
+    {
+        if (spell->Id == SPELL_SUMMON_ENTROPIUS)
+            /// @todo: Temporarily replaced with SetVisible. Otherwise we will be not able to respawn M'uru in case of wipe
+            /// me->DespawnOrUnsummon(1500ms);
+            events.ScheduleEvent(EVENT_SET_INVISIBLE, 1500ms);
+    }
+
+    void EnterEvadeMode(EvadeReason /*why*/) override
+    {
+        DoResetPortals(me);
+        DoDespawnSummons(me);
+        _DespawnAtEvade();
+    }
+
+    // Do not store anything, despawn is handled in DoDespawnSummons
+    void JustSummoned(Creature* summon) override
+    {
+        if (summon->GetEntry() == NPC_ENTROPIUS)
+            if (_isBerserkTriggered)
+                summon->AI()->DoAction(ACTION_BERSERK);
+    }
+
+    void UpdateAI(uint32 diff) override
+    {
+        if (!UpdateVictim())
+            return;
+
+        events.Update(diff);
 
-        bool Execute(uint64 /*time*/, uint32 /*diff*/)
+        if (me->HasUnitState(UNIT_STATE_CASTING))
+            return;
+
+        while (uint32 eventId = events.ExecuteEvent())
         {
-            _owner->CastSpell(nullptr, SPELL_SUMMON_VOID_SENTINEL, true);
-            return true;
+            switch (eventId)
+            {
+                case EVENT_SUMMON_BLOOD_ELVES:
+                    DoCastSelf(SPELL_SUMMON_BLOOD_ELVES_PERIODIC);
+                    break;
+                case EVENT_SUMMON_ENTROPIUS:
+                    DoCastSelf(SPELL_SUMMON_ENTROPIUS);
+                    break;
+                case EVENT_SET_INVISIBLE:
+                    me->SetVisible(false);
+                    break;
+                case EVENT_BERSERK:
+                {
+                    _isBerserkTriggered = true;
+                    DoCastSelf(SPELL_BERSERK);
+
+                    if (Creature* entropius = instance->GetCreature(DATA_ENTROPIUS))
+                        entropius->AI()->DoAction(ACTION_BERSERK);
+                    break;
+                }
+                default:
+                    break;
+            }
         }
+    }
 
-    private:
-        Creature* _owner;
+private:
+    bool _isBerserkTriggered;
+    bool _isInTransition;
 };
 
+// 25840 - Entropius
 struct boss_entropius : public BossAI
 {
     boss_entropius(Creature* creature) : BossAI(creature, DATA_MURU) { }
 
-    void Reset() override
+    void InitializeAI() override
     {
-        _Reset();
-        DoCast(me, SPELL_ENTROPIUS_COSMETIC_SPAWN, true);
+        me->SetReactState(REACT_PASSIVE);
     }
 
-    void ScheduleTasks() override
+    void JustAppeared() override
     {
-        scheduler.Schedule(Milliseconds(2000), [this](TaskContext /*context*/)
-        {
-            DoResetPortals();
-            DoCastAOE(SPELL_NEGATIVE_ENERGY_PERIODIC_E, true);
-        });
+        DoCastSelf(SPELL_ENTROPIUS_COSMETIC_SPAWN);
 
-        scheduler.Schedule(Seconds(15), [this](TaskContext context)
-        {
-            DoCastAOE(SPELL_DARKNESS_E, true);
-            DoCastAOE(SPELL_BLACKHOLE, true);
+        events.ScheduleEvent(EVENT_SPAWN_1, 1500ms);
+    }
 
-            context.Repeat();
-        });
+    void JustEngagedWith(Unit* who) override
+    {
+        BossAI::JustEngagedWith(who);
+
+        events.ScheduleEvent(EVENT_DARKNESS, 10s, 15s);
+        events.ScheduleEvent(EVENT_BLACK_HOLE, 10s, 15s);
     }
 
-    void JustSummoned(Creature* summon) override
+    // Do not store anything, despawn is handled in DoDespawnSummons
+    void JustSummoned(Creature* /*summon*/) override { }
+
+    void DoAction(int32 action) override
     {
-        switch (summon->GetEntry())
-        {
-            case NPC_DARK_FIENDS:
-                summon->CastSpell(summon, SPELL_DARKFIEND_VISUAL);
-                break;
-            case NPC_DARKNESS:
-                summon->SetReactState(REACT_PASSIVE);
-                summon->CastSpell(summon, SPELL_BLACKHOLE);
-                summon->CastSpell(summon, SPELL_SUMMON_DARKFIEND_E, true);
-                break;
-        }
-        summons.Summon(summon);
+        if (action == ACTION_BERSERK)
+            DoCastSelf(SPELL_BERSERK);
     }
 
     void EnterEvadeMode(EvadeReason /*why*/) override
@@ -182,8 +343,8 @@ struct boss_entropius : public BossAI
         if (Creature* muru = instance->GetCreature(DATA_MURU))
             muru->AI()->EnterEvadeMode();
 
-        DoResetPortals();
-        summons.DespawnAll();
+        DoResetPortals(me);
+        DoDespawnSummons(me);
         me->DespawnOrUnsummon();
     }
 
@@ -191,307 +352,394 @@ struct boss_entropius : public BossAI
     {
         _JustDied();
 
+        DoDespawnSummons(me);
+
         if (Creature* muru = instance->GetCreature(DATA_MURU))
             muru->DisappearAndDie();
     }
 
     void UpdateAI(uint32 diff) override
     {
-        if (!UpdateVictim())
+        events.Update(diff);
+
+        if (me->HasUnitState(UNIT_STATE_CASTING))
             return;
 
-        scheduler.Update(diff, [this]
+        while (uint32 eventId = events.ExecuteEvent())
         {
-            DoMeleeAttackIfReady();
-        });
-    }
+            switch (eventId)
+            {
+                case EVENT_SPAWN_1:
+                    DoResetPortals(me);
+                    events.ScheduleEvent(EVENT_SPAWN_2, 1500ms);
+                    break;
+                case EVENT_SPAWN_2:
+                    DoCastSelf(SPELL_NEGATIVE_ENERGY_PERIODIC_E);
+                    DoZoneInCombat();
+                    me->SetReactState(REACT_AGGRESSIVE);
+                    break;
+                case EVENT_DARKNESS:
+                    if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 100.0f, true))
+                        DoCast(target, SPELL_DARKNESS);
+                    events.Repeat(10s, 15s);
+                    break;
+                case EVENT_BLACK_HOLE:
+                    if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 100.0f, true))
+                        DoCast(target, SPELL_BLACK_HOLE);
+                    events.Repeat(20s, 25s);
+                    break;
+                default:
+                    break;
+            }
 
-    void DoResetPortals()
-    {
-        std::list<Creature*> portals;
-        me->GetCreatureListWithEntryInGrid(portals, NPC_MURU_PORTAL_TARGET, 100.0f);
-        for (Creature* portal : portals)
-            portal->RemoveAllAuras();
+            if (me->HasUnitState(UNIT_STATE_CASTING))
+                return;
+        }
+
+        if (UpdateVictim())
+            DoMeleeAttackIfReady();
     }
 };
 
-struct boss_muru : public BossAI
+// 25770 - M'uru Portal Target
+struct npc_muru_portal : public ScriptedAI
 {
-    boss_muru(Creature* creature) : BossAI(creature, DATA_MURU)
+    npc_muru_portal(Creature* creature) : ScriptedAI(creature) { }
+
+    void SpellHit(WorldObject* /*caster*/, SpellInfo const* spellInfo) override
     {
-        Initialize();
-        SetCombatMovement(false);
+        switch (spellInfo->Id)
+        {
+            case SPELL_OPEN_PORTAL:
+                DoCastSelf(SPELL_OPEN_PORTAL_VISUAL);
+                _scheduler.Schedule(5s, [this](TaskContext /*task*/)
+                {
+                    DoCastSelf(SPELL_SUMMON_VOID_SENTINEL_SUMMONER);
+                });
+                break;
+            case SPELL_OPEN_ALL_PORTALS:
+                DoCastSelf(SPELL_OPEN_PORTAL_VISUAL);
+                _scheduler.Schedule(2s, [this](TaskContext /*task*/)
+                {
+                    DoCastSelf(SPELL_TRANSFORM_VISUAL_MISSILE);
+                });
+                break;
+            default:
+                break;
+        }
     }
 
-    void Initialize()
+    void JustSummoned(Creature* summon) override
     {
-        _hasEnraged = false;
-        _phase = PHASE_ONE;
-        _entropiusGUID.Clear();
+        DoCast(summon, SPELL_SUMMON_VOID_SENTINEL_SUMMONER_VISUAL);
     }
 
-    void Reset() override
+    void DoAction(int32 action) override
     {
-        _Reset();
-        Initialize();
-        me->RemoveUnitFlag(UNIT_FLAG_UNINTERACTIBLE);
-        me->SetVisible(true);
+        if (action == ACTION_CANCEL_SUMMON)
+            _scheduler.CancelAll();
     }
 
-    void EnterEvadeMode(EvadeReason /*why*/) override
+    void UpdateAI(uint32 diff) override
     {
-        BossAI::EnterEvadeMode();
-        if (Creature* entropius = ObjectAccessor::GetCreature(*me, _entropiusGUID))
-            entropius->AI()->EnterEvadeMode();
+        _scheduler.Update(diff);
     }
 
-    void ScheduleTasks() override
-    {
-        scheduler.Schedule(Minutes(10), [this](TaskContext /*context*/)
-        {
-            if (Creature* entropius = ObjectAccessor::GetCreature(*me, _entropiusGUID))
-                entropius->CastSpell(entropius, SPELL_ENRAGE);
-            DoCast(me, SPELL_ENRAGE);
-            _hasEnraged = true;
-        });
+private:
+    TaskScheduler _scheduler;
+};
 
-        scheduler.Schedule(Seconds(10), [this](TaskContext /*context*/)
+// 25782 - Void Sentinel Summoner
+struct npc_void_sentinel_summoner : public ScriptedAI
+{
+    npc_void_sentinel_summoner(Creature* creature) : ScriptedAI(creature) { }
+
+    void JustAppeared() override
+    {
+        _scheduler.Schedule(1500ms, [this](TaskContext /*task*/)
         {
-            DoCast(me, SPELL_SUMMON_BLOOD_ELVES_SCRIPT, true);
-            DoCast(me, SPELL_SUMMON_BLOOD_ELVES_PERIODIC, true);
+            DoCastSelf(SPELL_SUMMON_VOID_SENTINEL);
+            me->DespawnOrUnsummon(3500ms);
         });
     }
 
-    void JustEngagedWith(Unit* who) override
+    void UpdateAI(uint32 diff) override
     {
-        BossAI::JustEngagedWith(who);
-        DoCast(me, SPELL_OPEN_PORTAL_PERIODIC, true);
-        DoCast(me, SPELL_DARKNESS_PERIODIC, true);
-        DoCast(me, SPELL_NEGATIVE_ENERGY_PERIODIC, true);
+        _scheduler.Update(diff);
     }
 
-    void DamageTaken(Unit* /*done_by*/, uint32& damage, DamageEffectType /*damageType*/, SpellInfo const* /*spellInfo = nullptr*/) override
+private:
+    TaskScheduler _scheduler;
+};
+
+// 25772 - Void Sentinel
+struct npc_void_sentinel : public ScriptedAI
+{
+    npc_void_sentinel(Creature* creature) : ScriptedAI(creature) { }
+
+    void InitializeAI() override
     {
-        if (damage >= me->GetHealth())
-        {
-            damage = me->GetHealth() - 1;
-            if (_phase != PHASE_ONE)
-                return;
+        me->SetCorpseDelay(5, true);
+        me->SetReactState(REACT_PASSIVE);
+    }
 
-            _phase = PHASE_TWO;
-            me->RemoveAllAuras();
-            DoCast(me, SPELL_OPEN_ALL_PORTALS, true);
-            me->SetUnitFlag(UNIT_FLAG_UNINTERACTIBLE);
+    void JustAppeared() override
+    {
+        DoCastSelf(SPELL_SHADOW_PULSE_PERIODIC);
 
-            scheduler.Schedule(Seconds(6), [this](TaskContext /*context*/)
-            {
-                DoCast(me, SPELL_SUMMON_ENTROPIUS, true);
-            });
-        }
+        _scheduler.Schedule(2500ms, [this](TaskContext /*task*/)
+        {
+            DoZoneInCombat();
+            me->SetReactState(REACT_AGGRESSIVE);
+        });
     }
 
-    void JustSummoned(Creature* summon) override
+    void JustEngagedWith(Unit* /*who*/) override
     {
-        if (summon->GetEntry() == NPC_ENTROPIUS)
+        _scheduler.Schedule(10s, 15s, [this](TaskContext task)
         {
-            me->SetVisible(false);
-            _entropiusGUID = summon->GetGUID();
-            DoZoneInCombat(summon);
-            if (_hasEnraged)
-                summon->CastSpell(summon, SPELL_ENRAGE, true);
-            return;
-        }
-        BossAI::JustSummoned(summon);
+            DoCastVictim(SPELL_VOID_BLAST);
+            task.Repeat(20s, 30s);
+        });
+    }
+
+    void JustDied(Unit* /*killer*/) override
+    {
+        for (uint8 i = 0; i < MAX_VOID_SPAWNS; ++i)
+            DoCastSelf(SPELL_SUMMON_VOID_SPAWN);
     }
 
     void UpdateAI(uint32 diff) override
     {
-        if (!UpdateVictim())
-            return;
+        _scheduler.Update(diff);
 
-        scheduler.Update(diff);
+        if (UpdateVictim())
+            DoMeleeAttackIfReady();
     }
 
 private:
-    ObjectGuid _entropiusGUID;
-    bool _hasEnraged;
-    uint8 _phase;
+    TaskScheduler _scheduler;
 };
 
-struct npc_muru_portal : public ScriptedAI
+// 25824 - Void Spawn
+struct npc_void_spawn : public ScriptedAI
 {
-    npc_muru_portal(Creature* creature) : ScriptedAI(creature) { }
+    npc_void_spawn(Creature* creature) : ScriptedAI(creature) { }
 
-    void JustSummoned(Creature* summon) override
+    void InitializeAI() override
     {
-        DoCast(summon, SPELL_SUMMON_VOID_SENTINEL_SUMMONER_VISUAL, true);
+        me->SetCorpseDelay(5, true);
+        me->SetReactState(REACT_PASSIVE);
+    }
 
-        summon->m_Events.AddEvent(new VoidSpawnSummon(summon), summon->m_Events.CalculateTime(1500ms));
+    void JustAppeared() override
+    {
+        _scheduler.Schedule(2s, [this](TaskContext /*task*/)
+        {
+            DoZoneInCombat();
+            me->SetReactState(REACT_AGGRESSIVE);
+        });
     }
 
-    void SpellHit(WorldObject* /*caster*/, SpellInfo const* spellInfo) override
+    void JustEngagedWith(Unit* /*who*/) override
     {
-        switch (spellInfo->Id)
+        _scheduler.Schedule(10s, 20s, [this](TaskContext task)
         {
-            case SPELL_OPEN_ALL_PORTALS:
-                DoCastAOE(SPELL_OPEN_PORTAL, true);
-                DoCastAOE(SPELL_TRANSFORM_VISUAL_MISSILE, true);
-                break;
-            case SPELL_OPEN_PORTAL_2:
-                DoCastAOE(SPELL_OPEN_PORTAL, true);
-                _scheduler.Schedule(Seconds(6), [this](TaskContext /*context*/)
-                {
-                    DoCastAOE(SPELL_SUMMON_VOID_SENTINEL_SUMMONER, true);
-                });
-                break;
-            default:
-                break;
-        }
+            DoCastSelf(SPELL_SHADOW_BOLT_VOLLEY);
+            task.Repeat(20s, 30s);
+        });
     }
 
     void UpdateAI(uint32 diff) override
     {
         _scheduler.Update(diff);
+
+        if (UpdateVictim())
+            DoMeleeAttackIfReady();
     }
 
 private:
     TaskScheduler _scheduler;
 };
 
+// 25744 - Dark Fiend
 struct npc_dark_fiend : public ScriptedAI
 {
-    npc_dark_fiend(Creature* creature) : ScriptedAI(creature)
-    {
-        Initialize();
-    }
+    npc_dark_fiend(Creature* creature) : ScriptedAI(creature), _isKilled(false) { }
 
-    void Initialize()
+    void InitializeAI() override
     {
         me->SetDisplayId(me->GetCreatureTemplate()->Modelid2);
         me->SetReactState(REACT_PASSIVE);
-        DoCast(me, SPELL_DARKFIEND_SKIN, true);
+    }
 
-        _scheduler.Schedule(Seconds(2), [this](TaskContext /*context*/)
+    void JustAppeared() override
+    {
+        DoCastSelf(SPELL_DARK_FIEND_MAGIC);
+
+        _scheduler.Schedule(2s, [this](TaskContext /*task*/)
         {
+            DoZoneInCombat();
             me->SetReactState(REACT_AGGRESSIVE);
-            me->RemoveUnitFlag(UNIT_FLAG_UNINTERACTIBLE);
+        });
 
-            if (Creature* _summoner = ObjectAccessor::GetCreature(*me, _summonerGUID))
-                if (Unit* target = _summoner->AI()->SelectTarget(SelectTargetMethod::Random, 0))
-                    AttackStart(target);
+        _scheduler.Schedule(2s, [this](TaskContext task)
+        {
+            if (me->IsWithinDist(me->GetVictim(), 2.0f))
+                DoCastVictim(SPELL_DARK_FIEND_TRAP);
+            else
+                task.Repeat(100ms);
         });
+    }
 
-        _scheduler.Schedule(Seconds(3), [this](TaskContext context)
+    void SpellHitTarget(WorldObject* /*target*/, SpellInfo const* spellInfo) override
+    {
+        if (spellInfo->Id == SPELL_DARK_FIEND_TRAP)
         {
-            if (me->IsWithinDist(me->GetVictim(), 5.0f) && me->HasAura(SPELL_DARKFIEND_SKIN))
+            _scheduler.Schedule(0s, [this](TaskContext task)
             {
-                DoCastAOE(SPELL_DARKFIEND_DAMAGE, false);
-                me->DisappearAndDie();
-            }
-
-            context.Repeat(Milliseconds(500));
-        });
+                switch (task.GetRepeatCounter())
+                {
+                    case 0:
+                        me->RemoveAurasDueToSpell(SPELL_DARK_FIEND_MAGIC);
+                        DoCastSelf(SPELL_DARK_FIEND_DAMAGE);
+                        me->SetReactState(REACT_PASSIVE);
+                        me->SetUnitFlag(UNIT_FLAG_UNINTERACTIBLE);
+                        task.Repeat(2500ms);
+                        break;
+                    case 1:
+                        DoCastSelf(SPELL_DARK_FIEND_VISUAL);
+                        me->DespawnOrUnsummon(3500ms);
+                        break;
+                    default:
+                        break;
+                }
+            });
+        }
     }
 
-    void IsSummonedBy(WorldObject* summoner) override
+    void DoAction(int32 action) override
     {
-        _summonerGUID = summoner->GetGUID();
+        /// @todo: This part requires sniff verification
+        if (action == ACTION_DISPELLED_MAGIC)
+        {
+            me->SetReactState(REACT_PASSIVE);
+            DoCastSelf(SPELL_DARK_FIEND_VISUAL);
+            me->DespawnOrUnsummon(3s);
+        }
     }
 
-    bool CanAIAttack(Unit const* /*target*/) const override
+    void DamageTaken(Unit* /*who*/, uint32& damage, DamageEffectType /*damageType*/, SpellInfo const* /*spellInfo = nullptr*/) override
     {
-        return me->HasAura(SPELL_DARKFIEND_SKIN);
+        if (damage >= me->GetHealth())
+        {
+            damage = me->GetHealth() -1;
+
+            if (!_isKilled)
+            {
+                _isKilled = true;
+                me->RemoveAurasDueToSpell(SPELL_DARK_FIEND_MAGIC);
+                DoCastSelf(SPELL_DARK_FIEND_VISUAL);
+                me->SetReactState(REACT_PASSIVE);
+                me->SetUnitFlag(UNIT_FLAG_UNINTERACTIBLE);
+                me->DespawnOrUnsummon(4500ms);
+            }
+        }
     }
 
     void UpdateAI(uint32 diff) override
     {
+        UpdateVictim();
+
         _scheduler.Update(diff);
     }
 
 private:
+    bool _isKilled;
     TaskScheduler _scheduler;
-    ObjectGuid _summonerGUID;
 };
 
-struct npc_void_sentinel : public ScriptedAI
+// 25879 - Darkness
+struct npc_darkness : public ScriptedAI
 {
-    npc_void_sentinel(Creature* creature) : ScriptedAI(creature)
-    {
-        _instance = me->GetInstanceScript();
-    }
+    npc_darkness(Creature* creature) : ScriptedAI(creature) { }
 
-    void IsSummonedBy(WorldObject* /*summoner*/) override
+    void InitializeAI() override
     {
-        if (Creature* muru = _instance->GetCreature(DATA_MURU))
-            muru->AI()->JustSummoned(me);
+        me->SetReactState(REACT_PASSIVE);
     }
 
-    void JustEngagedWith(Unit* /*who*/) override
+    void JustAppeared() override
     {
-        DoCast(me, SPELL_SHADOW_PULSE_PERIODIC, true);
-
-        _scheduler.Schedule(Seconds(45), [this](TaskContext context)
+        _scheduler.Schedule(1s, [this](TaskContext task)
         {
-            DoCastVictim(SPELL_VOID_BLAST, false);
-
-            context.Repeat();
+            switch (task.GetRepeatCounter())
+            {
+                case 0:
+                    DoCastSelf(SPELL_VOID_ZONE_PRE_EFFECT_VISUAL);
+                    task.Repeat(3s);
+                    break;
+                case 1:
+                    me->RemoveAurasDueToSpell(SPELL_VOID_ZONE_PRE_EFFECT_VISUAL);
+                    DoCastSelf(SPELL_VOID_ZONE_PERIODIC);
+                    task.Repeat(2500ms);
+                    break;
+                case 2:
+                    DoCastSelf(SPELL_SUMMON_DARK_FIEND);
+                    break;
+                default:
+                    break;
+            }
         });
     }
 
-    void JustDied(Unit* /*killer*/) override
-    {
-        for (uint8 i = 0; i < MAX_VOID_SPAWNS; ++i)
-            DoCastAOE(SPELL_SUMMON_VOID_SPAWN, true);
-    }
-
     void UpdateAI(uint32 diff) override
     {
-        _scheduler.Update(diff, [this]
-        {
-            DoMeleeAttackIfReady();
-        });
+        _scheduler.Update(diff);
     }
 
 private:
     TaskScheduler _scheduler;
-    InstanceScript* _instance;
 };
 
-struct npc_blackhole : public ScriptedAI
+// 25855 - Singularity
+struct npc_singularity : public ScriptedAI
 {
-    npc_blackhole(Creature* creature) : ScriptedAI(creature)
-    {
-        _instance = creature->GetInstanceScript();
-    }
+    npc_singularity(Creature* creature) : ScriptedAI(creature) { }
 
-    void Reset() override
+    void InitializeAI() override
     {
         me->SetReactState(REACT_PASSIVE);
-        DoCast(SPELL_BLACKHOLE_SUMMON_VISUAL);
-
-        _scheduler.Schedule(Seconds(15), [this](TaskContext /*context*/)
-        {
-            me->DisappearAndDie();
-        });
+    }
 
-        _scheduler.Schedule(Seconds(1), [this](TaskContext context)
+    void JustAppeared() override
+    {
+        _scheduler.Schedule(1s, [this](TaskContext task)
         {
-            switch (context.GetRepeatCounter())
+            switch (task.GetRepeatCounter())
             {
                 case 0:
-                    me->SetReactState(REACT_AGGRESSIVE);
-                    DoCast(SPELL_BLACKHOLE_SUMMON_VISUAL_2);
-                    if (Unit* victim = ObjectAccessor::GetUnit(*me, _instance->GetGuidData(DATA_PLAYER_GUID)))
-                        AttackStart(victim);
-                    context.Repeat(Milliseconds(1200));
+                    DoCastSelf(SPELL_BLACK_HOLE_SUMMON_VISUAL);
+                    task.Repeat(1s);
                     break;
                 case 1:
-                    DoCast(SPELL_BLACKHOLE_SUMMON_VISUAL);
-                    context.Repeat(Seconds(2));
+                    DoCastSelf(SPELL_BLACK_HOLE_SUMMON_VISUAL_2);
+                    task.Repeat(1s);
                     break;
                 case 2:
-                    DoCast(SPELL_BLACKHOLE_PASSIVE);
-                    DoCast(SPELL_BLACK_HOLE_VISUAL_2);
+                    DoCastSelf(SPELL_BLACK_HOLE_SUMMON_VISUAL);
+                    task.Repeat(2s);
+                    break;
+                case 3:
+                    me->RemoveAurasDueToSpell(SPELL_BLACK_HOLE_SUMMON_VISUAL_2);
+                    DoCastSelf(SPELL_BLACK_HOLE_PASSIVE);
+                    DoCastSelf(SPELL_BLACK_HOLE_VISUAL_2);
+                    task.Repeat(1s);
+                    break;
+                case 4:
+                    me->SetReactState(REACT_AGGRESSIVE);
+                    DoZoneInCombat();
+                    me->DespawnOrUnsummon(15s);
                     break;
                 default:
                     break;
@@ -501,113 +749,256 @@ struct npc_blackhole : public ScriptedAI
 
     void UpdateAI(uint32 diff) override
     {
+        UpdateVictim();
+
         _scheduler.Update(diff);
     }
 
 private:
     TaskScheduler _scheduler;
-    InstanceScript* _instance;
+};
+
+struct ShadowswordBaseAI : public ScriptedAI
+{
+    ShadowswordBaseAI(Creature* creature) : ScriptedAI(creature) { }
+
+    void InitializeAI() override
+    {
+        me->SetReactState(REACT_PASSIVE);
+        me->SetCorpseDelay(3, true);
+    }
+
+    void JustAppeared() override
+    {
+        scheduler.SetValidator([this]
+        {
+            return !me->HasUnitState(UNIT_STATE_CASTING);
+        });
+
+        if (Creature* trigger = me->FindNearestCreature(NPC_WORLD_TRIGGER_MOVE_TO, 120.0f))
+        {
+            float x, y, z;
+            trigger->GetClosePoint(x, y, z, 0.0f, 3.0f, float(M_PI));
+            me->GetMotionMaster()->MovePoint(POINT_ROOM, x, y, z);
+        }
+    }
+
+    void MovementInform(uint32 type, uint32 pointId) override
+    {
+        if (type != POINT_MOTION_TYPE)
+            return;
+
+        if (pointId == POINT_ROOM)
+        {
+            me->SetReactState(REACT_AGGRESSIVE);
+            DoZoneInCombat();
+        }
+    }
+
+    void JustEngagedWith(Unit* /*who*/) override
+    {
+        ScheduleEvents();
+    }
+
+    virtual void ScheduleEvents() = 0;
+
+    void UpdateAI(uint32 diff) override
+    {
+        if (!UpdateVictim())
+            return;
+
+        scheduler.Update(diff);
+
+        DoMeleeAttackIfReady();
+    }
+
+protected:
+    TaskScheduler scheduler;
+};
+
+// 25798 - Shadowsword Berserker
+struct npc_shadowsword_berserker : public ShadowswordBaseAI
+{
+    npc_shadowsword_berserker(Creature* creature) : ShadowswordBaseAI(creature) { }
+
+    void JustAppeared() override
+    {
+        DoCastSelf(SPELL_DUAL_WIELD_PASSIVE);
+        ShadowswordBaseAI::JustAppeared();
+    }
+
+    void ScheduleEvents() override
+    {
+        scheduler.Schedule(10s, 20s, [this](TaskContext task)
+        {
+            DoCastSelf(SPELL_FLURRY);
+            task.Repeat(15s, 25s);
+        });
+    }
+};
+
+// 25799 - Shadowsword Fury Mage
+struct npc_shadowsword_fury_mage : public ShadowswordBaseAI
+{
+    npc_shadowsword_fury_mage(Creature* creature) : ShadowswordBaseAI(creature) { }
+
+    void ScheduleEvents() override
+    {
+        scheduler.Schedule(5s, 10s, [this](TaskContext task)
+        {
+            DoCastVictim(SPELL_FEL_FIREBALL);
+            task.Repeat(5s, 10s);
+        });
+
+        scheduler.Schedule(20s, 40s, [this](TaskContext task)
+        {
+            DoCastSelf(SPELL_SPELL_FURY);
+            task.Repeat(40s, 60s);
+        });
+    }
+};
+
+// 46041 - Summon Blood Elves Periodic
+class spell_muru_summon_blood_elves_periodic : public AuraScript
+{
+    PrepareAuraScript(spell_muru_summon_blood_elves_periodic);
+
+    bool Validate(SpellInfo const* /*spellInfo*/) override
+    {
+        return ValidateSpellInfo({ SPELL_SUMMON_BLOOD_ELVES_SCRIPT });
+    }
+
+    void AfterApply(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
+    {
+        GetTarget()->CastSpell(GetTarget(), SPELL_SUMMON_BLOOD_ELVES_SCRIPT);
+    }
+
+    void OnPeriodic(AuraEffect const* /*aurEff*/)
+    {
+        GetTarget()->CastSpell(GetTarget(), SPELL_SUMMON_BLOOD_ELVES_SCRIPT);
+    }
+
+    void Register() override
+    {
+        AfterEffectApply += AuraEffectApplyFn(spell_muru_summon_blood_elves_periodic::AfterApply, EFFECT_0, SPELL_AURA_PERIODIC_DUMMY, AURA_EFFECT_HANDLE_REAL);
+        OnEffectPeriodic += AuraEffectPeriodicFn(spell_muru_summon_blood_elves_periodic::OnPeriodic, EFFECT_0, SPELL_AURA_PERIODIC_DUMMY);
+    }
 };
 
 // 46050 - Summon Blood Elves Script
-class spell_summon_blood_elves_script : public SpellScript
+class spell_muru_summon_blood_elves_script : public SpellScript
 {
-    PrepareSpellScript(spell_summon_blood_elves_script);
+    PrepareSpellScript(spell_muru_summon_blood_elves_script);
 
-    bool Validate(SpellInfo const* /*spell*/) override
+    bool Validate(SpellInfo const* /*spellInfo*/) override
     {
-        return ValidateSpellInfo(SummonBloodElvesSpells);
+        return ValidateSpellInfo(
+        {
+            SPELL_SUMMON_BERSERKER_1,
+            SPELL_SUMMON_BERSERKER_2,
+            SPELL_SUMMON_FURY_MAGE_1,
+            SPELL_SUMMON_FURY_MAGE_2
+        });
     }
 
     void HandleScript(SpellEffIndex /*effIndex*/)
     {
-        for (uint8 i = 0; i < MAX_SUMMON_BLOOD_ELVES; ++i)
-            GetCaster()->CastSpell(nullptr, SummonBloodElvesSpells[urand(0,3)], true);
+        Unit* caster = GetCaster();
+        caster->CastSpell(caster, SPELL_SUMMON_BERSERKER_1);
+        caster->CastSpell(caster, SPELL_SUMMON_BERSERKER_1);
+        caster->CastSpell(caster, SPELL_SUMMON_FURY_MAGE_1);
+        caster->CastSpell(caster, SPELL_SUMMON_FURY_MAGE_2);
+        caster->CastSpell(caster, SPELL_SUMMON_BERSERKER_2);
+        caster->CastSpell(caster, SPELL_SUMMON_BERSERKER_2);
     }
 
     void Register() override
     {
-        OnEffectHitTarget += SpellEffectFn(spell_summon_blood_elves_script::HandleScript, EFFECT_0, SPELL_EFFECT_SCRIPT_EFFECT);
+        OnEffectHit += SpellEffectFn(spell_muru_summon_blood_elves_script::HandleScript, EFFECT_0, SPELL_EFFECT_SCRIPT_EFFECT);
     }
 };
 
 // 45996 - Darkness
-class spell_muru_darkness : public SpellScript
+class spell_muru_darkness : public AuraScript
 {
-    PrepareSpellScript(spell_muru_darkness);
+    PrepareAuraScript(spell_muru_darkness);
 
-    bool Validate(SpellInfo const* /*spell*/) override
+    bool Validate(SpellInfo const* /*spellInfo*/) override
     {
         return ValidateSpellInfo(SummonDarkFiendSpells);
     }
 
-    void HandleAfterCast()
+    void HandleEffectPeriodic(AuraEffect const* aurEff)
     {
-        for (uint8 i = 0; i < MAX_SUMMON_DARK_FIEND; ++i)
-            GetCaster()->CastSpell(nullptr, SummonDarkFiendSpells[i], true);
+        if (aurEff->GetTickNumber() == 2)
+        {
+            Unit* target = GetTarget();
+            for (uint32 SummonSpell : SummonDarkFiendSpells)
+                target->CastSpell(target, SummonSpell);
+        }
     }
 
     void Register() override
     {
-        AfterCast += SpellCastFn(spell_muru_darkness::HandleAfterCast);
+        OnEffectPeriodic += AuraEffectPeriodicFn(spell_muru_darkness::HandleEffectPeriodic, EFFECT_2, SPELL_AURA_PERIODIC_DUMMY);
     }
 };
 
 // 45934 - Dark Fiend
-class spell_dark_fiend_skin : public AuraScript
+class spell_muru_dark_fiend_magic : public AuraScript
 {
-    PrepareAuraScript(spell_dark_fiend_skin);
+    PrepareAuraScript(spell_muru_dark_fiend_magic);
 
-    void OnRemove(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
+    void AfterRemove(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
     {
         if (GetTargetApplication()->GetRemoveMode() != AURA_REMOVE_BY_ENEMY_SPELL)
             return;
 
         if (Creature* target = GetTarget()->ToCreature())
-        {
-            target->SetReactState(REACT_PASSIVE);
-            target->AttackStop();
-            target->StopMoving();
-            target->CastSpell(target, SPELL_DARKFIEND_VISUAL, true);
-            target->DespawnOrUnsummon(3s);
-        }
+            target->AI()->DoAction(ACTION_DISPELLED_MAGIC);
     }
 
     void Register() override
     {
-        AfterEffectRemove += AuraEffectRemoveFn(spell_dark_fiend_skin::OnRemove, EFFECT_0, SPELL_AURA_DUMMY, AURA_EFFECT_HANDLE_REAL);
+        AfterEffectRemove += AuraEffectRemoveFn(spell_muru_dark_fiend_magic::AfterRemove, EFFECT_0, SPELL_AURA_DUMMY, AURA_EFFECT_HANDLE_REAL);
     }
 };
 
 // 46205 - Transform Visual Missile Periodic
-class spell_transform_visual_missile_periodic : public AuraScript
+class spell_muru_transform_visual_missile_periodic : public AuraScript
 {
-    PrepareAuraScript(spell_transform_visual_missile_periodic);
+    PrepareAuraScript(spell_muru_transform_visual_missile_periodic);
+
+    bool Validate(SpellInfo const* /*spellInfo*/) override
+    {
+        return ValidateSpellInfo({ SPELL_TRANSFORM_VISUAL_MISSILE_1, SPELL_TRANSFORM_VISUAL_MISSILE_2 });
+    }
 
     void OnPeriodic(AuraEffect const* /*aurEff*/)
     {
-        GetTarget()->CastSpell(nullptr, RAND(TRANSFORM_VISUAL_MISSILE_1, TRANSFORM_VISUAL_MISSILE_2), true);
+        GetTarget()->CastSpell(nullptr, RAND(SPELL_TRANSFORM_VISUAL_MISSILE_1, SPELL_TRANSFORM_VISUAL_MISSILE_2));
     }
 
     void Register() override
     {
-        OnEffectPeriodic += AuraEffectPeriodicFn(spell_transform_visual_missile_periodic::OnPeriodic, EFFECT_0, SPELL_AURA_PERIODIC_DUMMY);
+        OnEffectPeriodic += AuraEffectPeriodicFn(spell_muru_transform_visual_missile_periodic::OnPeriodic, EFFECT_0, SPELL_AURA_PERIODIC_DUMMY);
     }
 };
 
-// 46041 - Summon Blood Elves Periodic
-class spell_summon_blood_elves_periodic : public AuraScript
+// 45978 - Summon Void Sentinel Summoner
+class spell_muru_summon_void_sentinel_summoner : public SpellScript
 {
-    PrepareAuraScript(spell_summon_blood_elves_periodic);
+    PrepareSpellScript(spell_muru_summon_void_sentinel_summoner);
 
-    void OnPeriodic(AuraEffect const* /*aurEff*/)
+    void SetDest(SpellDestination& dest)
     {
-        GetTarget()->CastSpell(nullptr, SPELL_SUMMON_BLOOD_ELVES_SCRIPT, true);
+        Unit* caster = GetCaster();
+        dest._position.m_positionZ = caster->GetMapHeight(caster->GetPositionX(), caster->GetPositionY(), caster->GetPositionZ());
     }
 
     void Register() override
     {
-        OnEffectPeriodic += AuraEffectPeriodicFn(spell_summon_blood_elves_periodic::OnPeriodic, EFFECT_0, SPELL_AURA_PERIODIC_DUMMY);
+        OnDestinationTargetSelect += SpellDestinationTargetSelectFn(spell_muru_summon_void_sentinel_summoner::SetDest, EFFECT_0, TARGET_DEST_CASTER_FRONT);
     }
 };
 
@@ -662,14 +1053,20 @@ void AddSC_boss_muru()
     RegisterSunwellPlateauCreatureAI(boss_muru);
     RegisterSunwellPlateauCreatureAI(boss_entropius);
     RegisterSunwellPlateauCreatureAI(npc_muru_portal);
-    RegisterSunwellPlateauCreatureAI(npc_dark_fiend);
+    RegisterSunwellPlateauCreatureAI(npc_void_sentinel_summoner);
     RegisterSunwellPlateauCreatureAI(npc_void_sentinel);
-    RegisterSunwellPlateauCreatureAI(npc_blackhole);
-    RegisterSpellScript(spell_summon_blood_elves_script);
+    RegisterSunwellPlateauCreatureAI(npc_void_spawn);
+    RegisterSunwellPlateauCreatureAI(npc_dark_fiend);
+    RegisterSunwellPlateauCreatureAI(npc_darkness);
+    RegisterSunwellPlateauCreatureAI(npc_singularity);
+    RegisterSunwellPlateauCreatureAI(npc_shadowsword_berserker);
+    RegisterSunwellPlateauCreatureAI(npc_shadowsword_fury_mage);
+    RegisterSpellScript(spell_muru_summon_blood_elves_periodic);
+    RegisterSpellScript(spell_muru_summon_blood_elves_script);
     RegisterSpellScript(spell_muru_darkness);
-    RegisterSpellScript(spell_dark_fiend_skin);
-    RegisterSpellScript(spell_transform_visual_missile_periodic);
-    RegisterSpellScript(spell_summon_blood_elves_periodic);
+    RegisterSpellScript(spell_muru_dark_fiend_magic);
+    RegisterSpellScript(spell_muru_transform_visual_missile_periodic);
+    RegisterSpellScript(spell_muru_summon_void_sentinel_summoner);
     RegisterSpellScript(spell_muru_negative_energy_periodic);
     RegisterSpellScript(spell_muru_negative_energy);
 }
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
index 248480c65ff..ac4c33e8f7e 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
@@ -56,6 +56,7 @@ ObjectData const creatureData[] =
     { NPC_GRAND_WARLOCK_ALYTHESS, DATA_ALYTHESS             },
     { NPC_LADY_SACROLASH,         DATA_SACROLASH            },
     { NPC_MURU,                   DATA_MURU                 },
+    { NPC_ENTROPIUS,              DATA_ENTROPIUS            },
     { NPC_KILJAEDEN,              DATA_KILJAEDEN            },
     { NPC_KILJAEDEN_CONTROLLER,   DATA_KILJAEDEN_CONTROLLER },
     { NPC_ANVEENA,                DATA_ANVEENA              },
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/sunwell_plateau.h b/src/server/scripts/EasternKingdoms/SunwellPlateau/sunwell_plateau.h
index 7dfc6e55329..28946c17e98 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/sunwell_plateau.h
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/sunwell_plateau.h
@@ -45,6 +45,7 @@ enum SWPDataTypes
     DATA_KILJAEDEN_CONTROLLER,
     DATA_ANVEENA,
     DATA_KALECGOS_KJ,
+    DATA_ENTROPIUS,
 
     // GameObject GUIDs
     DATA_ORB_OF_THE_BLUE_DRAGONFLIGHT_1,
@@ -99,13 +100,15 @@ enum SWPCreatureIds
     NPC_SPIKE_TARGET2                        = 30614,
     NPC_SINISTER_REFLECTION                  = 25708, // Sinister Relection spawnd on Phase swichtes
 
+    // M'uru
+    NPC_VOID_SENTINEL_SUMMONER               = 25782,
+    NPC_VOID_SENTINEL                        = 25772,
+    NPC_VOID_SPAWN                           = 25824,
+    NPC_DARK_FIEND                           = 25744,
     NPC_DARKNESS                             = 25879,
-    NPC_DARK_FIENDS                          = 25744,
+    NPC_SINGULARITY                          = 25855,
     NPC_BERSERKER                            = 25798,
     NPC_FURY_MAGE                            = 25799,
-    NPC_VOID_SENTINEL                        = 25772,
-    NPC_VOID_SPAWN                           = 25824,
-    NPC_BLACK_HOLE                           = 25855,
     NPC_MURU_PORTAL_TARGET                   = 25770
 };