If this Baby Pokémon is your Active Pokémon and your opponent tries to attack, your opponent flips a coin (before doing anything else required in order to use that attack). If tails, your opponent's turn ends without an attack.
The Defending Pokémon is now Asleep.
Flip 2 coins. This attack does 40 damage times the number of heads. Heal from this Pokémon the amount of damage done to the Defending Pokémon