[BT15-067] Kaio-Ken Son Goku, Maximum Gains

[Auto] When this card is played, draw 1 card, then choose up to 1 of your opponent's Battle Cards with an energy cost of 4 or less and KO it.
[Activate:Main] [Limit 1] G, if your opponent has 3 or more energy and your life is less than or equal to your opponent's : Chooe up to 1 "Kaio-Ken Son Goku, Decisive Battle" in your hand and play it on top of this card.