Piccolo, Counter (BT23-051) - Perfect Combination

[Activate:Main] [Limit 1] B, if your Leader's back side is "Son Goku & Piccolo, Rag-Tag Alliance" and you have a "Piercing Special Beam Cannon" in your Battle Area : Draw 1 card and play this card from your hand.
[Activate:Battle] [Once per turn] B, if it's your opponent's turn : Choose up to 1 of your blue "Son Goku" cards with an energy cost of 3 and switch it to Active Mode, then choose up to 1 of your cards and it gets +5000 power for the battle.