diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockCaverns/boss_corla_herald_of_twilight.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockCaverns/boss_corla_herald_of_twilight.cpp
index dc6a89719ca..dac5e4f9b81 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockCaverns/boss_corla_herald_of_twilight.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockCaverns/boss_corla_herald_of_twilight.cpp
@@ -17,6 +17,7 @@
 
 #include "ScriptMgr.h"
 #include "blackrock_caverns.h"
+#include "GameEventMgr.h"
 #include "ScriptedCreature.h"
 #include "SpellScript.h"
 #include "Spell.h"
@@ -39,6 +40,7 @@ enum Spells
     SPELL_DRAIN_ESSENSE                         = 75645,
     SPELL_AURA_OF_ACCELERATION                  = 87376,
     SPELL_TWILIGHT_EVOLUTION                    = 75732,
+    SPELL_WEAR_CHRISTMAS_HAT_RED_SELF_DND       = 61400,
 
     // Twilight Zealot
     SPELL_KNEELING_SUPPLICATION                 = 75608,
@@ -94,6 +96,11 @@ enum Data
     DATA_ARRESTED_DEVELOPMENT = 0
 };
 
+enum Misc
+{
+    GAME_EVENT_WINTER_VEIL = 2
+};
+
 Position const TwilightZealotSummonPositions[] =
 {
     { 585.0278f, 982.8993f, 155.4369f, 1.500983f },
@@ -103,18 +110,18 @@ Position const TwilightZealotSummonPositions[] =
 
 struct boss_corla_herald_of_twilight : public BossAI
 {
-    boss_corla_herald_of_twilight(Creature* creature) : BossAI(creature, DATA_CORLA_HERALD_OF_TWILIGHT) { }
+    boss_corla_herald_of_twilight(Creature* creature) : BossAI(creature, DATA_CORLA_HERALD_OF_TWILIGHT), _killedZealots(0) { }
 
-
-    void Reset() override
+    void JustAppeared() override
     {
-        _Reset();
-        _killedZealots = 0;
         events.SetPhase(PHASE_OUT_OF_COMBAT);
         events.ScheduleEvent(EVENT_DRAIN_ESSENSE, 1ms, 0, PHASE_OUT_OF_COMBAT);
 
         for (uint8 i = 0; i < (IsHeroic() ? 3 : 2); i++)
             DoSummon(NPC_TWILIGHT_ZEALOT, TwilightZealotSummonPositions[i], 0, TEMPSUMMON_MANUAL_DESPAWN);
+
+        if (sGameEventMgr->IsActiveEvent(GAME_EVENT_WINTER_VEIL))
+            DoCastSelf(SPELL_WEAR_CHRISTMAS_HAT_RED_SELF_DND);
     }
 
     void JustEngagedWith(Unit* /*who*/) override
diff --git a/src/server/scripts/Maelstrom/Stonecore/boss_high_priestess_azil.cpp b/src/server/scripts/Maelstrom/Stonecore/boss_high_priestess_azil.cpp
index aceab3d1573..984601fa470 100644
--- a/src/server/scripts/Maelstrom/Stonecore/boss_high_priestess_azil.cpp
+++ b/src/server/scripts/Maelstrom/Stonecore/boss_high_priestess_azil.cpp
@@ -17,6 +17,7 @@
 
 #include "ScriptMgr.h"
 #include "DynamicObject.h"
+#include "GameEventMgr.h"
 #include "InstanceScript.h"
 #include "Map.h"
 #include "MoveSplineInit.h"
@@ -35,32 +36,33 @@
 
 enum Spells
 {
-    SPELL_ENERGY_SHIELD             = 82858,
-    SPELL_CURSE_OF_BLOOD            = 79345,
-    SPELL_FORCE_GRIP                = 79351,
-    SPELL_FORCE_GRIP_CHANGE_SEAT    = 79359,
-    SPELL_FORCE_GRIP_DAMAGE         = 79358,
-    SPELL_SUMMON_GRAVITY_WELL       = 79340,
-    SPELL_EARTH_FURY_ENERGY_SHIELD  = 79050,
-    SPELL_GRAVITY_WELL_VISUAL       = 79245,
-    SPELL_GRAVITY_WELL_AURA_DAMAGE  = 79244,
-    SPELL_GRAVITY_WELL_AURA_PULL    = 79333,
-    SPELL_GRAVITY_WELL_DAMAGE       = 79249,
-    SPELL_GRAVITY_WELL_PULL         = 79332,
-    SPELL_EARTH_FURY_CASTING_VISUAL = 79002,
-    SPELL_SEISMIC_SHARD_SUMMON_1    = 86860,
-    SPELL_SEISMIC_SHARD_SUMMON_2    = 86858,
-    SPELL_SEISMIC_SHARD_SUMMON_3    = 86856,
-    SPELL_SEISMIC_SHARD_VISUAL      = 79009,
-    SPELL_SEISMIC_SHARD_PREPARE     = 86862,
-    SPELL_SEISMIC_SHARD_TARGETING   = 80511,
-    SPELL_SEISMIC_SHARD_LAUNCH      = 79015,
-    SPELL_SEISMIC_SHARD_MISSLE      = 79014,
-    SPELL_EJECT_ALL_PASSENGERS      = 68576,
-    SPELL_SUMMON_WAVE_SOUTH         = 79200,
-    SPELL_SUMMON_WAVE_WEST          = 79196,
-    SPELL_SUMMON_ADD_SOUTH          = 79193,
-    SPELL_SUMMON_ADD_WEST           = 79199
+    SPELL_ENERGY_SHIELD                     = 82858,
+    SPELL_CURSE_OF_BLOOD                    = 79345,
+    SPELL_FORCE_GRIP                        = 79351,
+    SPELL_FORCE_GRIP_CHANGE_SEAT            = 79359,
+    SPELL_FORCE_GRIP_DAMAGE                 = 79358,
+    SPELL_SUMMON_GRAVITY_WELL               = 79340,
+    SPELL_EARTH_FURY_ENERGY_SHIELD          = 79050,
+    SPELL_GRAVITY_WELL_VISUAL               = 79245,
+    SPELL_GRAVITY_WELL_AURA_DAMAGE          = 79244,
+    SPELL_GRAVITY_WELL_AURA_PULL            = 79333,
+    SPELL_GRAVITY_WELL_DAMAGE               = 79249,
+    SPELL_GRAVITY_WELL_PULL                 = 79332,
+    SPELL_EARTH_FURY_CASTING_VISUAL         = 79002,
+    SPELL_SEISMIC_SHARD_SUMMON_1            = 86860,
+    SPELL_SEISMIC_SHARD_SUMMON_2            = 86858,
+    SPELL_SEISMIC_SHARD_SUMMON_3            = 86856,
+    SPELL_SEISMIC_SHARD_VISUAL              = 79009,
+    SPELL_SEISMIC_SHARD_PREPARE             = 86862,
+    SPELL_SEISMIC_SHARD_TARGETING           = 80511,
+    SPELL_SEISMIC_SHARD_LAUNCH              = 79015,
+    SPELL_SEISMIC_SHARD_MISSLE              = 79014,
+    SPELL_EJECT_ALL_PASSENGERS              = 68576,
+    SPELL_SUMMON_WAVE_SOUTH                 = 79200,
+    SPELL_SUMMON_WAVE_WEST                  = 79196,
+    SPELL_SUMMON_ADD_SOUTH                  = 79193,
+    SPELL_SUMMON_ADD_WEST                   = 79199,
+    SPELL_WEAR_CHRISTMAS_HAT_RED_SELF_DND   = 61400
 };
 
 enum Texts
@@ -123,6 +125,11 @@ enum VehicleIds
     VEHICLE_ID_FORCE_GRIP   = 892
 };
 
+enum Misc
+{
+    GAME_EVENT_WINTER_VEIL = 2
+};
+
 Position const GroundPos = { 1331.82f, 980.314f, 207.542f };
 Position const AbovePlatformPos = { 1336.21f, 960.813f, 215.0f };
 
@@ -144,6 +151,12 @@ class boss_high_priestess_azil : public CreatureScript
                 _isChannelingForceGrip = false;
             }
 
+            void JustAppeared() override
+            {
+                if (sGameEventMgr->IsActiveEvent(GAME_EVENT_WINTER_VEIL))
+                    DoCastSelf(SPELL_WEAR_CHRISTMAS_HAT_RED_SELF_DND);
+            }
+
             void Reset() override
             {
                 _Reset();