Gengar LV. X

Once during your turn (before your attack), you may choose 1 of your opponent's Pokémon LV.X. Remove the Level-Up card from that Pokémon and have your opponent shuffle that card into his or her deck. This power can't be used if Gengar is affected by a Special Condition.

This attack does 30 damage to each of your opponent's Pokémon that already has any damage counters on it. (Don't apply Weakness and Resistance for Benched Pokémon.)