Trafalgar Law [Ultra Deck - The Three Captains]

[Activate:Main] [Once Per Turn] DON!! -3 (You may return the specified number of DON!! cards from your field to your DON!! deck.) : Place up to 1 of your opponent's Characters with 3000 power or less at the bottom of the owner's deck, and play up to 1 Character card with a cost of 4 or less from your hand.