Choose 1 of your opponent's PokÃ©mon. This attack does 20 damage to that PokÃ©mon. (Don't apply Weakness and Resistance for Benched PokÃ©mon.) Flip a coin. If heads, your opponent discards 1 Energy card, if any, attached to that PokÃ©mon.
Flip a coin. If tails, Swellow does 10 damage to itself.