Cannot be Normal Summoned or Set. Must be Special Summoned by Yubel , and cannot be Special Summoned other ways. This card cannot be destroyed by battle. You take no Battle Damage from battles involving this card. Before damage calculation, when this face-up Attack Position card is attacked by an opponent s monster: Inflict damage to your opponent equal to that monster s ATK. During your End Phase: Destroy all other monsters on the field. When this face-up card leaves the field: You can Special Summon 1 Yubel – The Ultimate Nightmare from your hand, Deck or Graveyard.