Banette ex

Once during your turn (before your attack), if Banette ex is your Active Pokémon, you may move 1 damage counter from either player's Pokémon to another Pokémon (yours or your opponent's). This power can't be used if Banette ex is affected by a Special Condition.

Does 30 damage plus 10 more damage for each Supporter card in your discard pile. You can't add more than 60 damage in this way.