Giovanni's Machamp (Gym Challenge 6/132)

If Giovanni's Machamp would be Knocked Out by an opponent's attack, flip a coin. If heads, Giovanni's Machamp is not Knocked Out and its remaining HP become 10 instead. This power can't be used if Giovanni's Machamp is already Asleep, Confused, or Paralyzed.

Fighting Fighting Fighting Colorless
Hurricane Punch

Flip 4 coins. This attack does 30 damage times the number of heads.