Gum-Gum Fire-Fist Pistol Red Hawk

[Main] You may rest 3 of your DON!! cards: If you and your opponent have a total of 5 or more Life cards, K.O. up to 1 of your opponent's Characters with a base cost of 5 or less.
[Counter] Up to 1 of your Leader gains +3000 power during this battle.