Gengar

Once during your turn (before your attack), if your opponent has 3 or fewer Prizes, you may move 1 damage counter from 1 Pokémon (yours or your opponent's) to another (even if it would Knock Out the other Pokémon). This power can't be used if Gengar is affected by a Special Condition.

Switch Gengar with 1 of your Benched Pokémon, if any.