Who's.Who

[On Play] DON!! -1 (You may return the specified number of DON!! cards from your field to your DON!! deck.): K.O. <span style="color:red">up to</span> 1 of your opponent's Characters with a cost of 3 or less.

[Trigger] Play this card.

<span style="color:red">Disclaimer: This card has been re-printed with new errata'd text as part of the Revision Pack cards series. This product page is for the original, pre-errata print of this card.</span>