PokÃ©-Body Natural Remedy
Once during your turn (before your attack), when you attach a Water Energy from your hand to Swampert, remove 1 damage counter from Swampert.
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.)