Mismagius

Once during your turn (before your attack), you may move a Psychic Energy attached to 1 of your Pokémon to another of your Pokémon. This power can’t be used if Mismagius is affected by a Special Condition.

Does 10 damage to each of your opponent’s Benched Pokémon that has any damage counters on it. (Don’t apply Weakness and Resistance for Benched Pokémon.)