From dea3d44b46f6a885c196856e24046d9b490aa633 Mon Sep 17 00:00:00 2001
From: Andrew <47818697+Nyeriah@users.noreply.github.com>
Date: Tue, 24 Sep 2024 15:17:22 -0300
Subject: [PATCH] fix(Core/Spells): Prevent aura application if the target is
 immune (#20031)

---
 src/server/game/Spells/Spell.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/server/game/Spells/Spell.cpp b/src/server/game/Spells/Spell.cpp
index e3ae15423..bde6e7b35 100644
--- a/src/server/game/Spells/Spell.cpp
+++ b/src/server/game/Spells/Spell.cpp
@@ -3160,6 +3160,13 @@ SpellMissInfo Spell::DoSpellHitOnUnit(Unit* unit, uint32 effectMask, bool scaleA
 
             if (m_spellAura)
             {
+                // Prevent aura application if target is immuned
+                if (m_targets.GetUnitTarget() && m_targets.GetUnitTarget()->IsImmunedToDamageOrSchool(m_spellAura->GetSpellInfo()))
+                {
+                    m_spellAura->Remove();
+                    return SPELL_MISS_IMMUNE;
+                }
+
                 // Set aura stack amount to desired value
                 if (m_spellValue->AuraStackAmount > 1)
                 {