[Activate Main] If you have 20 or more cards in your Drop, choose up to 1 "Son Goku" with a cost of 3 in your Battle Area and it gains [Double Strike] for the turn. Then, choose up to 1 Battle Card in your opponent's Battle Area and place it at the bottom of its owner's deck.
([Double Strike]: This card inflicts 2 damage instead of 1 when attacking.)