fix(Scripts/Spells): implement Clear Demonic Circle, cast by General Vezax on engage (#27040)

data/sql/updates/pending_db_world/rev_1786192707275526400.sql

@@ -0,0 +1,4 @@
+--
+DELETE FROM `spell_script_names` WHERE `ScriptName` = 'spell_gen_clear_demonic_circle';
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES
+(62037, 'spell_gen_clear_demonic_circle');

src/server/scripts/Northrend/Ulduar/Ulduar/boss_general_vezax.cpp

@@ -41,6 +41,7 @@ enum VezaxSpellData
     SPELL_MARK_OF_THE_FACELESS_AURA             = 63276,
     SPELL_MARK_OF_THE_FACELESS_EFFECT           = 63278,
 
+    SPELL_CLEAR_DEMONIC_CIRCLE                  = 62037,
     SPELL_AURA_OF_DESPAIR_1                     = 62692,
     SPELL_AURA_OF_DESPAIR_2                     = 64848,
     SPELL_CORRUPTED_RAGE                        = 68415,
@@ -145,6 +146,7 @@ struct boss_vezax : public BossAI
 
         Talk(SAY_AGGRO);
 
+        me->CastSpell(me, SPELL_CLEAR_DEMONIC_CIRCLE, true);
         me->CastSpell(me, SPELL_AURA_OF_DESPAIR_1, true);
     }
 

src/server/scripts/Spells/spell_generic.cpp

@@ -1483,6 +1483,33 @@ class spell_gen_clear_debuffs : public SpellScript
     }
 };
 
+enum ClearDemonicCircle
+{
+    SPELL_DEMONIC_CIRCLE_SUMMON = 48018
+};
+
+// 62037 - Clear Demonic Circle
+class spell_gen_clear_demonic_circle : public SpellScript
+{
+    PrepareSpellScript(spell_gen_clear_demonic_circle);
+
+    bool Validate(SpellInfo const* /*spellInfo*/) override
+    {
+        return ValidateSpellInfo({ SPELL_DEMONIC_CIRCLE_SUMMON });
+    }
+
+    void HandleScript(SpellEffIndex /*effIndex*/)
+    {
+        if (Unit* target = GetHitUnit())
+            target->RemoveAurasDueToSpell(SPELL_DEMONIC_CIRCLE_SUMMON);
+    }
+
+    void Register() override
+    {
+        OnEffectHitTarget += SpellEffectFn(spell_gen_clear_demonic_circle::HandleScript, EFFECT_0, SPELL_EFFECT_SCRIPT_EFFECT);
+    }
+};
+
 enum CreateLanceSpells
 {
     SPELL_CREATE_LANCE_ALLIANCE = 63914,
@@ -6225,6 +6252,7 @@ void AddSC_generic_spell_scripts()
     RegisterSpellScript(spell_gen_burn_brutallus);
     RegisterSpellScript(spell_gen_cannibalize);
     RegisterSpellScript(spell_gen_clear_debuffs);
+    RegisterSpellScript(spell_gen_clear_demonic_circle);
     RegisterSpellScript(spell_gen_create_lance);
     RegisterSpellScript(spell_gen_netherbloom);
     RegisterSpellScript(spell_gen_nightmare_vine);