Catastrophic Blow

[Energy-Exhaust] [Activate:Main] If you have a Red/Blue multicolor 'Son Goku' card in play, or there are no Battle Cards in your Battle Area, deal 1 damage to your opponent. [Activate:Main] Send this card from your Drop Area to your Warp : Look at the top card of your deck; if it's a multicolor Extra Card, you may add it to your hand; otherwise, place it on top of your deck.