Pikachu

It occasionally uses an electric shock to recharge a fellow Pikachu that is in a weakened state.

Pika Ball (10)

Mega Shot: Discard all Lightning Energy attached to Pikachu and then choose 1 of your opponent's Pokémon. This attack does 40 damage to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)