Trebol (OP04-030) - Kingdoms of Intrigue Foil

[On Play] K.O. up to 1 of your opponent's rested Characters with a cost of 5 or less.
[On Your Opponent's Attack] (2) (You may rest the specified number of DON!! cards in your cost area.): Rest up to 1 of your opponent's Characters with a cost of 4 or less.