Poké-POWER: Baby Evolution
Once during your turn (before your attack), you may put Chansey from your hand onto Happiny (this counts as evolving Happiny) and remove all damage counters from Happiny.
Switch the Defending Pokémon with 1 of your opponent’s Benched Pokémon. Remove 2 damage counters from the new Defending Pokémon.
It likes to carry around a small rock. It may wander around others’ feet and cause them to stumble.