diff --git a/sql/updates/world/4.3.4/2020_07_10_01_world.sql b/sql/updates/world/4.3.4/2020_07_10_01_world.sql
new file mode 100644
index 00000000000..2bc003cdb14
--- /dev/null
+++ b/sql/updates/world/4.3.4/2020_07_10_01_world.sql
@@ -0,0 +1,66 @@
+SET @ENTRY := 42362;
+UPDATE `creature_template` SET `mechanic_immune_mask`= 1 | 2 | 8 | 16 | 32 | 64 | 256 | 512 | 2048 | 4096 | 8192 | 65536 | 131072 | 4194304 | 8388608 | 33554432 | 67108864 WHERE `entry` IN (42362, 49489);
+UPDATE `creature_template` SET `DamageModifier`= 90, `BaseVariance`= 1 WHERE `entry` IN (42362, 49489);
+UPDATE `creature_template` SET `difficulty_entry_1`= 49489, `AIName`="SmartAI" WHERE `entry`= @ENTRY;
+UPDATE `creature_template` SET `minlevel`= 85, `maxlevel`= 85, `exp`= 3, `faction`= 16, `speed_walk`= 1.2, `speed_run`= 1, `unit_flags`= 32832, `lootid`= 42362 WHERE `entry`= 49489;
+
+SET @GUID := -250140;
+DELETE FROM `smart_scripts` WHERE `entryorguid`=@GUID AND `source_type`=0;
+INSERT INTO `smart_scripts` (`entryorguid`, `source_type`, `id`, `link`, `event_type`, `event_phase_mask`, `event_chance`, `event_flags`, `event_param1`, `event_param2`, `event_param3`, `event_param4`, `action_type`, `action_param1`, `action_param2`, `action_param3`, `action_param4`, `action_param5`, `action_param6`, `target_type`, `target_param1`, `target_param2`, `target_param3`, `target_x`, `target_y`, `target_z`, `target_o`, `comment`) VALUES
+(@GUID, 0, 0, 1, 1, 0, 100, 1, 6000, 6000, 0, 0, 11, 79025, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, "Update (OOC) 6000 min and 6000 max ms (repeat 0 min 0 max ms) - Self: Cast spell 79025 on Self // "),
+(@GUID, 0, 1, 0, 61, 0, 100, 0, 0, 0, 0, 0, 17, 425, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, " Linked - Self: Set emote state (UNIT_NPC_EMOTESTATE) to 425 // "),
+(@GUID, 0, 2, 0, 25, 0, 100, 0, 0, 0, 0, 0, 11, 79573, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, "On reset (e.g. after reaching home) - Self: Cast spell 79573 on Self // "),
+(@GUID, 0, 3, 0, 4, 0, 100, 0, 0, 0, 0, 0, 28, 79573, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, "On aggro - Self: Remove aura due to spell 79573 // "),
+(@GUID, 0, 4, 0, 0, 0, 100, 0, 8000, 8000, 7000, 7000, 11, 79604, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, "Update (In Combat) 8000 min and 8000 max ms (repeat 7000 min 7000 max ms) - Self: Cast spell 79604 on Self // "),
+(@GUID, 0, 5, 6, 0, 0, 100, 0, 20000, 20000, 20000, 20000, 11, 63984, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, "Update (In Combat) 20000 min and 20000 max ms (repeat 20000 min 20000 max ms) - Self: Cast spell 63984 on Self // "),
+(@GUID, 0, 6, 0, 61, 0, 100, 0, 0, 0, 0, 0, 11, 79630, 0, 0, 0, 0, 0, 28, 80, 1, 1, 0, 0, 0, 0, " Linked - Self: Cast spell 79630 on Farthest player within 80 yards on the threat list // "),
+(@GUID, 0, 7, 0, 6, 0, 100, 0, 0, 0, 0, 0, 11, 80035, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, "On death - Self: Cast spell 80035 on Self // ");
+
+SET @GUID := -250141;
+DELETE FROM `smart_scripts` WHERE `entryorguid`=@GUID AND `source_type`=0;
+INSERT INTO `smart_scripts` (`entryorguid`, `source_type`, `id`, `link`, `event_type`, `event_phase_mask`, `event_chance`, `event_flags`, `event_param1`, `event_param2`, `event_param3`, `event_param4`, `action_type`, `action_param1`, `action_param2`, `action_param3`, `action_param4`, `action_param5`, `action_param6`, `target_type`, `target_param1`, `target_param2`, `target_param3`, `target_x`, `target_y`, `target_z`, `target_o`, `comment`) VALUES
+(@GUID, 0, 0, 1, 1, 0, 100, 1, 6000, 6000, 0, 0, 86, 88200, 0, 10, 250105, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, "Update (OOC) 6000 min and 6000 max ms (repeat 0 min 0 max ms) - SMART_TARGET_CREATURE_GUID: Cast spell 88200 at Self // "),
+(@GUID, 0, 1, 0, 61, 0, 100, 0, 0, 0, 0, 0, 17, 468, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, " Linked - Self: Set emote state (UNIT_NPC_EMOTESTATE) to 468 // "),
+(@GUID, 0, 2, 0, 0, 0, 100, 0, 8000, 8000, 7000, 8000, 11, 79604, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, "Update (In Combat) 8000 min and 8000 max ms (repeat 7000 min 8000 max ms) - Self: Cast spell 79604 on Self // "),
+(@GUID, 0, 3, 4, 0, 0, 100, 0, 20000, 20000, 20000, 20000, 11, 63984, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, "Update (In Combat) 20000 min and 20000 max ms (repeat 20000 min 20000 max ms) - Self: Cast spell 63984 on Self // "),
+(@GUID, 0, 4, 0, 61, 0, 100, 0, 0, 0, 0, 0, 11, 79630, 0, 0, 0, 0, 0, 28, 80, 1, 1, 0, 0, 0, 0, " Linked - Self: Cast spell 79630 on Farthest player within 80 yards on the threat list // "),
+(@GUID, 0, 5, 0, 6, 0, 100, 0, 0, 0, 0, 0, 11, 80035, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, "On death - Self: Cast spell 80035 on Self // "),
+(@GUID, 0, 6, 0, 4, 0, 100, 0, 0, 0, 0, 0, 92, 0, 0, 0, 0, 0, 0, 10, 250105, 0, 0, 0, 0, 0, 0, "On aggro - Creature Magmaw Spike Stalker 41767 (250105): Interrupt casted spell // ");
+
+-- Conditions
+DELETE FROM `conditions` WHERE `SourceEntry` IN (79025, 88200, 79461, 80035, 79580, 91906) AND `SourceTypeOrReferenceId`= 13;
+INSERT INTO `conditions` (`SourceTypeOrReferenceId`, `SourceGroup`, `SourceEntry`, `SourceId`, `ElseGroup`, `ConditionTypeOrReference`, `ConditionTarget`, `ConditionValue1`, `ConditionValue2`, `ConditionValue3`, `NegativeCondition`, `ErrorType`, `ScriptName`, `Comment`) VALUES
+(13, 1, 79025, 0, 0, 31, 0, 3, 42347, 0, 0, 0, '', 'Chain Visual - Target Exposed Head of Magmaw'),
+(13, 1, 88200, 0, 0, 31, 0, 3, 41570, 0, 0, 0, '', 'Captured - Target Magmaw'),
+(13, 2, 79461, 0, 0, 31, 0, 3, 42362, 0, 0, 0, '', 'Emote - Magmaw Lava Splash - Drakonid Drudge'),
+(13, 7, 80035, 0, 0, 31, 0, 3, 42362, 0, 0, 0, '', 'Vengeful Rage - Drakonid Drudge'),
+(13, 1, 79580, 0, 0, 31, 0, 3, 42690, 0, 0, 0, '', 'Overhead Smash - Overhead Smash'),
+(13, 1, 91906, 0, 0, 31, 0, 3, 42690, 0, 0, 0, '', 'Overhead Smash - Overhead Smash');
+
+DELETE FROM `spell_script_names` WHERE `ScriptName`= 'spell_magmaw_captured';
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES
+(88200, 'spell_magmaw_captured');
+
+DELETE FROM `spell_custom_attr` WHERE `entry`= 79461;
+INSERT INTO `spell_custom_attr` (`entry`, `attributes`) VALUES
+(79461, 0x1000 |0x2000 | 0x4000);
+
+UPDATE `creature_template` SET `mechanic_immune_mask`= 1 | 2 | 8 | 16 | 32 | 64 | 256 | 512 | 2048 | 4096 | 8192 | 65536 | 131072 | 4194304 | 8388608 | 33554432 | 67108864 WHERE `entry` IN (42649, 49490);
+UPDATE `creature_template` SET `DamageModifier`= 100, `BaseVariance`= 1 WHERE `entry` IN (42649, 49490);
+UPDATE `creature_template` SET `difficulty_entry_1`= 49490, `AIName`='', `ScriptName`= 'npc_bwd_drakonid_chainwielder' WHERE `entry`= 42649;
+UPDATE `creature_template` SET `flags_extra`= 128, `AIName`= 'NullCreatureAI' WHERE `entry`= 42690;
+UPDATE `creature_template` SET `minlevel`= 85, `maxlevel`= 85, `exp`= 3, `faction`= 16, `speed_walk`= 1.2, `speed_run`= 1, `unit_flags`= 32832, `lootid`= 42649 WHERE `entry`= 49490;
+
+-- Serverside Spells
+DELETE FROM `spell_dbc` WHERE `Id`= 79578;
+INSERT INTO `spell_dbc` (`Id`, `CastingTimeIndex`, `DurationIndex`, `RangeIndex`, `AttributesEx`, `AttributesEx2`, `AttributesEx3`, `AttributesEx4`, `AttributesEx5`, `SchoolMask`, `Comment`) VALUES
+(79578, 1, 205, 187, 0xA9000100, 0x00084004, 0x00040000, 0x00000080, 0x00000008, 1, '(Serverside/Non-DB2) Overhead Smash');
+
+DELETE FROM `spelleffect_dbc` WHERE `Id`= 160107;
+INSERT INTO `spelleffect_dbc` (`Id`, `Effect`, `EffectBasePoints`, `EffectMiscValue`, `EffectMiscValueB`, `EffectRadiusIndex`, `EffectRadiusMaxIndex`, `EffectImplicitTargetA`, `EffectImplicitTargetB`, `SpellID`, `EffectIndex`, `Comment`) VALUES
+(160107, 28, 0, 42690, 64, 0, 0, 87, 0, 79578, 0, '');
+
+DELETE FROM `spell_script_names` WHERE `ScriptName`= 'spell_bwd_grievous_wound';
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES
+(80051, 'spell_bwd_grievous_wound'),
+(91910, 'spell_bwd_grievous_wound');
diff --git a/src/server/game/Spells/SpellMgr.cpp b/src/server/game/Spells/SpellMgr.cpp
index 2b4505bd882..63ee678acd7 100644
--- a/src/server/game/Spells/SpellMgr.cpp
+++ b/src/server/game/Spells/SpellMgr.cpp
@@ -5610,6 +5610,18 @@ void SpellMgr::LoadSpellInfoCorrections()
         spellInfo->MaxAffectedTargets = 1;
     });
 
+    // Constricting Chains
+    ApplySpellFix({ 79589 }, [](SpellInfo* spellInfo)
+    {
+        spellInfo->MaxAffectedTargets = 2;
+    });
+
+    // Constricting Chains
+    ApplySpellFix({ 91911 }, [](SpellInfo* spellInfo)
+    {
+        spellInfo->MaxAffectedTargets = 4;
+    });
+
     // ENDOF BLACKWING DESCENT SPELLS
 
     // Living Bomb
@@ -5618,6 +5630,15 @@ void SpellMgr::LoadSpellInfoCorrections()
         spellInfo->MaxAuraTargets = 3;
     });
 
+    // Overhead Smash
+    ApplySpellFix({
+        79580,
+        91906,
+    }, [](SpellInfo* spellInfo)
+    {
+        spellInfo->RangeEntry = sSpellRangeStore.LookupEntry(6); // 100 yards
+    });
+
     // Living Bomb
     ApplySpellFix({ 44461 }, [](SpellInfo* spellInfo)
     {
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/blackwing_descent.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/blackwing_descent.cpp
index 698b45345c3..fe17bf88c4a 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/blackwing_descent.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/blackwing_descent.cpp
@@ -180,6 +180,91 @@ private:
     uint8 _talkTextId;
 };
 
+enum DrakonidChainWielder
+{
+    // Events
+    EVENT_OVERHEAD_SMASH = 1,
+    EVENT_GRIEVOUS_WOUND,
+    EVENT_CONSTRICTING_CHAINS,
+
+    // Spells
+    SPELL_OVERHEAD_SMASH_SUMMON = 79578, // Serverside spell
+    SPELL_OVERHEAD_SMASH        = 79580,
+    SPELL_GRIEVOUS_WOUND        = 80051,
+    SPELL_CONSTRICTING_CHAINS   = 79589,
+};
+
+struct npc_bwd_drakonid_chainwielder : public ScriptedAI
+{
+    npc_bwd_drakonid_chainwielder(Creature* creature) : ScriptedAI(creature) { }
+
+    void JustEngagedWith(Unit* /*who*/) override
+    {
+        _events.ScheduleEvent(EVENT_GRIEVOUS_WOUND, 9s);
+        _events.ScheduleEvent(EVENT_OVERHEAD_SMASH, 12s);
+        _events.ScheduleEvent(EVENT_CONSTRICTING_CHAINS, 42s);
+    }
+
+    void EnterEvadeMode(EvadeReason why) override
+    {
+        ScriptedAI::EnterEvadeMode(why);
+        _events.Reset();
+    }
+
+    void JustSummoned(Creature* summon) override
+    {
+        if (summon->GetEntry() == NPC_OVERHEAD_SMASH)
+        {
+            me->SetFacingToObject(summon);
+            DoCast(summon, SPELL_OVERHEAD_SMASH);
+        }
+    }
+
+    void JustDied(Unit* killer) override
+    {
+        ScriptedAI::JustDied(killer);
+        _events.Reset();
+    }
+
+    void UpdateAI(uint32 diff) override
+    {
+        if (!UpdateVictim())
+            return;
+
+        _events.Update(diff);
+
+        if (me->HasUnitState(UNIT_STATE_CASTING))
+            return;
+
+        while (uint32 eventId = _events.ExecuteEvent())
+        {
+            switch (eventId)
+            {
+                case EVENT_OVERHEAD_SMASH:
+                    if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0, 60.f, true))
+                        DoCast(target, SPELL_OVERHEAD_SMASH_SUMMON);
+                    _events.Repeat(27s, 36s);
+                    break;
+                case EVENT_GRIEVOUS_WOUND:
+                    DoCastVictim(SPELL_GRIEVOUS_WOUND);
+                    _events.Repeat(22s, 25s);
+                    break;
+                case EVENT_CONSTRICTING_CHAINS:
+                    DoCastAOE(SPELL_CONSTRICTING_CHAINS);
+                    _events.Repeat(7s, 11s);
+                    break;
+                default:
+                    break;
+            }
+        }
+
+        DoMeleeAttackIfReady();
+    }
+
+private:
+    EventMap _events;
+};
+
 struct go_bwd_ancient_bell : public GameObjectAI
 {
     go_bwd_ancient_bell(GameObject* go) : GameObjectAI(go), _instance(go->GetInstanceScript()) { }
@@ -237,6 +322,25 @@ class spell_bwd_dragon_orb : public SpellScript
     }
 };
 
+class spell_bwd_grievous_wound : public AuraScript
+{
+    PrepareAuraScript(spell_bwd_grievous_wound);
+
+    void OnPeriodic(AuraEffect const* /*aurEff*/)
+    {
+        if (GetUnitOwner()->HealthAbovePct(90))
+        {
+            PreventDefaultAction();
+            Remove(AuraRemoveFlags::ByEnemySpell);
+        }
+    }
+
+    void Register() override
+    {
+        OnEffectPeriodic += AuraEffectPeriodicFn(spell_bwd_grievous_wound::OnPeriodic, EFFECT_0, SPELL_AURA_PERIODIC_DAMAGE);
+    }
+};
+
 class at_bwd_intro: public OnlyOnceAreaTriggerScript
 {
     public:
@@ -253,7 +357,9 @@ class at_bwd_intro: public OnlyOnceAreaTriggerScript
 void AddSC_blackwing_descent()
 {
     RegisterBlackwingDescentCreatureAI(npc_bwd_lord_victor_nefarius);
+    RegisterBlackwingDescentCreatureAI(npc_bwd_drakonid_chainwielder);
     RegisterGameObjectAI(go_bwd_ancient_bell);
     RegisterSpellScript(spell_bwd_dragon_orb);
+    RegisterAuraScript(spell_bwd_grievous_wound);
     new at_bwd_intro();
 }
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/blackwing_descent.h b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/blackwing_descent.h
index ceb14ecdeb3..26bcd48229e 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/blackwing_descent.h
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/blackwing_descent.h
@@ -161,7 +161,11 @@ enum BWDCreatureIds
     NPC_SPIRIT_OF_THAURISSAN                = 43126,
     NPC_SPIRIT_OF_BURNINGEYE                = 43130,
     NPC_COLUMN_OF_LIGHT                     = 51506,
-    NPC_LORD_VICTOR_NEFARIUS_GENERIC        = 48964
+    NPC_LORD_VICTOR_NEFARIUS_GENERIC        = 48964,
+
+    // Generic Creatures
+    NPC_DRAKONID_DRUDGE                     = 42362,
+    NPC_OVERHEAD_SMASH                      = 42690
 };
 
 enum BWDGameObjectIds
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/boss_magmaw.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/boss_magmaw.cpp
index 9984aa67065..ca03d77afc6 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/boss_magmaw.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/boss_magmaw.cpp
@@ -48,6 +48,8 @@ enum Spells
     SPELL_MASSIVE_CRASH                         = 88253,
     SPELL_IMPALE_SELF                           = 77907,
     SPELL_EJECT_PASSENGER_3                     = 95204,
+    SPELL_EMOTE_MAGMA_LAVA_SPLASH               = 79461,
+    SPELL_EMOTE_SPELLCASTDIRECTED               = 20718,
 
     // Exposed Head of Magmaw
     SPELL_POINT_OF_VULNERABILITY_SHARE_DAMAGE   = 79010,
@@ -1232,6 +1234,30 @@ class spell_magmaw_impale_self : public AuraScript
     }
 };
 
+class spell_magmaw_captured : public AuraScript
+{
+    PrepareAuraScript(spell_magmaw_captured);
+
+    bool Validate(SpellInfo const* /*spell*/) override
+    {
+        return ValidateSpellInfo(
+            {
+                SPELL_EMOTE_MAGMA_LAVA_SPLASH,
+                SPELL_EMOTE_SPELLCASTDIRECTED
+            });
+    }
+
+    void HandleTick(AuraEffect const* /*aurEff*/)
+    {
+        GetTarget()->CastSpell(GetTarget(), RAND(SPELL_EMOTE_MAGMA_LAVA_SPLASH, SPELL_EMOTE_SPELLCASTDIRECTED), true);
+    }
+
+    void Register() override
+    {
+        OnEffectPeriodic += AuraEffectPeriodicFn(spell_magmaw_captured::HandleTick, EFFECT_0, SPELL_AURA_PERIODIC_DUMMY);
+    }
+};
+
 class achievement_parasite_evening : public AchievementCriteriaScript
 {
     public:
@@ -1268,5 +1294,6 @@ void AddSC_boss_magmaw()
     RegisterSpellScript(spell_magmaw_shadow_breath_targeting);
     RegisterAuraScript(spell_magmaw_massive_crash);
     RegisterAuraScript(spell_magmaw_impale_self);
+    RegisterAuraScript(spell_magmaw_captured);
     new achievement_parasite_evening();
 }
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/instance_blackwing_descent.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/instance_blackwing_descent.cpp
index 03aed4e91b5..2939a3a8916 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/instance_blackwing_descent.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingDescent/instance_blackwing_descent.cpp
@@ -106,6 +106,11 @@ enum SummonGroups
     SUMMON_GROUP_ATRAMEDES_INTRO = 0
 };
 
+enum Spells
+{
+    SPELL_EMOTE_MAGMA_LAVA_SPLASH = 79461
+};
+
 class instance_blackwing_descent : public InstanceMapScript
 {
     public:
@@ -186,6 +191,9 @@ class instance_blackwing_descent : public InstanceMapScript
                         if (Creature* nefarian = GetCreature(DATA_NEFARIANS_END))
                             nefarian->AI()->JustSummoned(creature);
                         break;
+                    case NPC_DRAKONID_DRUDGE:
+                        creature->ApplySpellImmune(SPELL_EMOTE_MAGMA_LAVA_SPLASH, IMMUNITY_ID, SPELL_EMOTE_MAGMA_LAVA_SPLASH, true);
+                        break;
                     default:
                         break;
                 }