From cab3992d0f9524e6debd8980e1c79756a05deb16 Mon Sep 17 00:00:00 2001
From: UltraNix <80540499+UltraNix@users.noreply.github.com>
Date: Sun, 24 Oct 2021 12:02:47 +0200
Subject: [PATCH] fix(Core/Spells): SPELL_AURA_PROC_TRIGGER_DAMAGE auras should
 not proc if target is immuned (#8675)

- Closes #8461
---
 src/server/game/Spells/Auras/SpellAuraEffects.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/server/game/Spells/Auras/SpellAuraEffects.cpp b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
index 6c169bc4d..9f1c39941 100644
--- a/src/server/game/Spells/Auras/SpellAuraEffects.cpp
+++ b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
@@ -6823,6 +6823,12 @@ void AuraEffect::HandleProcTriggerDamageAuraProc(AuraApplication* aurApp, ProcEv
 {
     Unit* target = aurApp->GetTarget();
     Unit* triggerTarget = eventInfo.GetProcTarget();
+    if (triggerTarget->HasUnitState(UNIT_STATE_ISOLATED) || triggerTarget->IsImmunedToDamageOrSchool(GetSpellInfo()))
+    {
+        SendTickImmune(triggerTarget, target);
+        return;
+    }
+
     SpellNonMeleeDamage damageInfo(target, triggerTarget, GetSpellInfo(), GetSpellInfo()->SchoolMask);
     uint32 damage = target->SpellDamageBonusDone(triggerTarget, GetSpellInfo(), GetAmount(), SPELL_DIRECT_DAMAGE);
     damage = triggerTarget->SpellDamageBonusTaken(target, GetSpellInfo(), damage, SPELL_DIRECT_DAMAGE);