If this card is in Attack Position: You can target 1 DARK monster on the field; change this card to Defense Position, and if you do, that monster gains 800 ATK DEF until the end of your opponent s turn. You can banish this card from your GY; add 1 The Phantom Knights card from your Deck to your hand, except The Phantom Knights of Ancient Cloak . You can only use each effect of The Phantom Knights of Ancient Cloak once per turn.