Piercing Special Beam Cannon (BT23-041) - Perfect Combination Foil

[Auto] [Limit 1] If your Leader is a mono-blue "Son Goku" card and you remove this card from the game : When your blue "Piccolo" card attacks, the attacking card gains [Critical] for the battle, then reduce the energy cost of the next "Piercing Special Beam Cannon" you place in your Battle Area this turn by B. Additionally, you may choose 1 of your blue "Son Goku" Battle Cards and KO it. If you do, choose up to 1 of your opponent's Battle Cards and place it at the bottom of its owner's deck, then the attacking card gets +15000 power for the battle.