diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp
index fcd5fdcb3..b76ed95a0 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp
@@ -69,10 +69,12 @@ enum Spells
     SPELL_BLAZE_SUMMON          = 45236
 };
 
-enum Misc
+enum TwinPhases
 {
     ACTION_SISTER_DIED          = 1,
-    GROUP_SPECIAL_ABILITY       = 1
+    GROUP_SPECIAL_ABILITY       = 1,
+    GROUP_PYROGENICS            = 2,
+    GROUP_FLAME_SEAR            = 3
 };
 
 struct boss_sacrolash : public BossAI
@@ -226,16 +228,24 @@ struct boss_alythess : public BossAI
             Talk(YELL_SISTER_SACROLASH_DEAD);
             me->CastSpell(me, SPELL_EMPOWER, true);
 
-            scheduler.CancelGroup(GROUP_SPECIAL_ABILITY);
+            scheduler.CancelAll();
+            // PYROGENICS Phase 2
+            scheduler.Schedule(16s, GROUP_PYROGENICS, [this](TaskContext context) {
+                DoCastSelf(SPELL_PYROGENICS);
+                context.Repeat(16s, 28s);
+            });
+            // FLAME_SEAR phase 2
+            ScheduleTimedEvent(8s, 10s, [&] {
+                me->CastCustomSpell(SPELL_FLAME_SEAR, SPELLVALUE_MAX_TARGETS, urand(4, 5), me, TRIGGERED_NONE);
+            }, 8s, 10s, GROUP_FLAME_SEAR);
             ScheduleTimedEvent(20s, 26s, [&] {
                 Unit* target = SelectTarget(SelectTargetMethod::MaxThreat, 1, 100.0f);
                 if (!target)
                     target = me->GetVictim();
                 DoCast(target, SPELL_SHADOW_NOVA);
 
-                if (Creature * sacrolash = instance->GetCreature(DATA_SACROLASH))
+                if (Creature* sacrolash = instance->GetCreature(DATA_SACROLASH))
                     sacrolash->AI()->Talk(EMOTE_SHADOW_NOVA, target);
-
             }, 20s, 26s);
         }
     }
@@ -253,13 +263,16 @@ struct boss_alythess : public BossAI
             DoCastVictim(SPELL_BLAZE);
         }, 3800ms);
 
-        ScheduleTimedEvent(21s, 34s, [&] {
+        // PYROGENICS Phase 1
+        scheduler.Schedule(21s, GROUP_PYROGENICS, [this](TaskContext context) {
             DoCastSelf(SPELL_PYROGENICS);
-        }, 21s, 34s);
+            context.Repeat(21s, 34s);
+        });
 
+        // FLAME_SEAR Phase 1
         ScheduleTimedEvent(10s, 15s, [&] {
             me->CastCustomSpell(SPELL_FLAME_SEAR, SPELLVALUE_MAX_TARGETS, urand(4, 5), me, TRIGGERED_NONE);
-        }, 10s, 15s);
+        }, 10s, 15s, GROUP_FLAME_SEAR);
 
         scheduler.Schedule(20s, GROUP_SPECIAL_ABILITY, [this](TaskContext context) {
             Unit* target = SelectTarget(SelectTargetMethod::MaxThreat, 1, 100.0f);