Forretress G.

This attack does 10 damage to each of your opponent's Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.) Forretress G can't use Shell Scatter during your next turn.

Does 10 damage to each Benched Pokémon (both yours and your opponent's). (Don't apply Weakness and Resistance for Benched Pokémon.) Flip a coin. If tails, Forretress G does 80 damage to itself.