Vileplume

The larger its petals, the more toxic pollen it contains. Its big head is heavy and hard to hold up.

Pokemon Power — Heal: Once during your turn (before your attack), you may flip a coin. If heads, remove 1 damage counter from 1 of your Pokémon. This power can't be used if Vileplume is Asleep, Confused, or Paralyzed.

Petal Dance (40x): Flip 3 coins. This attack does 40 damage times the number of heads. Vileplume is now Confused (after doing damage).