fix(Core/Spells): General Vezax Shadow Crash puddles must not stack, strip their linked aura, or show a countdown (#27374)

Co-authored-by: Claude Fable 5.1 <[email protected]>

data/sql/updates/pending_db_world/rev_1787962738628062700.sql

@@ -0,0 +1,4 @@
+-- General Vezax - Shadow Crash (63277): only one puddle area aura may affect a target (#27226, #26927)
+DELETE FROM `spell_custom_attr` WHERE `spell_id` = 63277;
+INSERT INTO `spell_custom_attr` (`spell_id`, `attributes`) VALUES
+(63277, 536870912); -- SPELL_ATTR0_CU_ONLY_ONE_AREA_AURA

src/server/game/Spells/SpellInfoCorrections.cpp

@@ -1941,6 +1941,12 @@ void SpellMgr::LoadSpellInfoCorrections()
         spellInfo->Effects[EFFECT_0].Effect = 0;
     });
 
+    // Ulduar, General Vezax, Shadow Crash (area aura)
+    ApplySpellFix({ 63277 }, [](SpellInfo* spellInfo)
+    {
+        spellInfo->AttributesEx5 |= SPELL_ATTR5_DO_NOT_DISPLAY_DURATION;
+    });
+
     // Boom (XT-002)
     ApplySpellFix({ 62834 }, [](SpellInfo* spellInfo)
     {