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 affected by a Special Condition when your opponent attacks.
Disclaimer: The following data is based on sale history from a third party source. Data is updated about every 5 days. This data does not serve as a value guarantee.