“Power of the Mask” Darkness

AUTO [①] At the beginning of your opponent's attack phase, you may pay the cost. If you do, choose 1 of your 《Adventurer》 or 《Magic》 characters and this card, and exchange them as . AUTO During your opponent's turn, when the damage you received is not canceled, if this card is in your center stage, look at the top card of your deck, and put it on the top of your deck or into your waiting room. AUTO Change [Put this card into your waiting room] At the beginning of your climax phase, you may pay the cost. If you do, choose 1 ""Duke of Hell" Vanir" in your waiting room, and put it in the stage position that this card was in.