Spells/Ulduar: Fixes spell Mark Of The Faceless in General Vezax's Encounter

src/server/game/Spells/SpellMgr.cpp

@@ -3927,6 +3927,7 @@ void SpellMgr::LoadSpellCustomAttr()
         case 67860: // Impale
         case 69293: // Wing Buffet
         case 74439: // Machine Gun
+        case 63278: // Mark of the Faceless
             mSpellCustomAttr[i] |= SPELL_ATTR0_CU_IGNORE_ARMOR;
             ++count;
             break;