Devil Survivor2

[C] ASSIST All your Characters in front of this gain +X Power. X = 500 times Level of that Characters.[A] CHANGE [(2) Discard a card from hand to the Waiting Room, put this in the Waiting Room] At the start of your Climax Phase, you may pay cost. If so,...

[A] When this is placed from hand to the Stage, you may put the top card of your Clock in the Waiting Room.[A] When this attacks, if "Byakko Summoning" is i nthe Climax Zone, choose up to 1 of your Opponent's Characters and return it to the hand. and...