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.
Mimic
Shuffle your hand into your deck. Then, draw a number of cards equal to the number of cards in your opponent's hand.
Tone-Deaf
Your opponent's Active Pokémon is now Confused.