Greninja

When you play this Pokémon from your hand to evolve 1 of your Pokémon, you may prevent all effects of attacks, including damage, done to this Pokémon by your opponent's Pokémon during your opponent's next turn.

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