Quagsire

Once during your turn (before your attack), if Quagsire is your Active Pokémon and the Defending Pokémon has any Water Energy attached to it, you may remove 3 damage counters from Quagsire.

Does 20 damage to 1 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)