[PKM] Grumpig (23/102) [HeartGold & SoulSilver: Triumphant]

Your opponent can't use any Poké-Powers on his or her Pokémon during his or her next turn.

Your opponent flips a coin for each of his or her Benched Pokémon. This attack does 40 damage times the number of tails. This attack's damage isn't affected by Weakness or Resistance.