Voltenso

You may do 40 damage plus 10 more damage for each Energy attached to Manectric. If you do, Manectric. If you do, Manectric does 10 damage to itself.

Choose 1 of your opponent's Pokémon. This attack does 20 damage to that Pokémon. (Don't apply Weaknesss and Resistance for Benched Pokémon.)