Flip a coin. If heads, this attack does 10 more damage, and does 10 damage to each of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon); if tails, this Pokémon does 10 damage to itself.
This attack does 10 more damage for each Water Energy attached to this Pokémon, but not used to pay for this attack's Energy cost. Don't apply Resistance for this attack.