Mr.2.Bon.Kurei (Bentham) (OP04-069) - Kingdoms of Intrigue

[On Your Opponent's Attack] DON!! -1 (You may return the specified number of DON!! cards from your field to your DON!! deck.): This Character's base power becomes the same as the power of your opponent's attacking Leader or Character during this turn.
[Trigger] DON!! -1: Play this card.