Pokémon Trading Card Game - Machamp - Base Set 8

Pokémon Power: Strikes Back
Whenever your opponent's attack damages Machamp (even if Machamp is Knocked Out), this power does 10 damage to the attacking Pokémon. (Don't apply Weakness and Resistance.) This power can't be used if Machamp is already Asleep, Confused, or Paralyzed when your opponent attacks.

Seismic Toss 60

LV.67 #68