[PKM] Machamp (43) [Wizards of the Coast: Black Star Promos]

Flip a number of coins equal to the number of damage counters on Machamp. This attack does 20 damage plus 10 more damage for each heads.

If your opponent has any Benched Pokémon, he or she chooses 1 of them and switches it with the Defending Pokémon. (Do the damage before switching the Pokémon.)