Attach this card to 1 of your Pokémon SP in play. That Pokémon may use this card's attack instead of its own. When the Pokémon this card is attached to is no longer a Pokémon SP, discard this card.

Choose 1 of your opponent's Pokémon. This attack does 10 damage times the number of damage counters on the Pokémon this card is attached to to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)