Zephyr (Navy) (Judge Pack Vol. 4) (OP06-074) - One Piece Promotion Cards

[On Play] DON!! -1 (You may return the specified number of DON!! cards from your field to your DON!! deck.): Negate the effect of up to 1 of your opponent's Characters during this turn. Then, if that Character has 5000 power or less, K.O. it.