Machamp 43

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. Damage: 20+

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.) Damage: 50