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.
When you play this card from your hand to evolve a Pokémon, the opponent's Active Pokémon is now Poisoned and Confused.
Flip a coin. If heads, this attack does 30 more damage.