Yanmega 17

Does 10 damage to each of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.) Your opponent switches the Defending Pokémon with 1 of his or her Benched Pokémon. Damage: 10

If the Defending Pokémon already has 2 or more damage counters on it, this attack does 60 damage plus 20 more damage and switch Yanmega with 1 of your Benched Pokémon. Damage: 60+