Butterfree 12 - SV Scarlet and Violet 151

Switch out your opponent's Active Pokémon to the Bench.(Your opponent chooses the new Active Pokémon.)

Choose 1 of your opponent's Benched Pokemon. Shuffle that Pokemon and all attached cards into their deck, and then shuffle this Pokemon and all attached cards into your deck. If your opponent has no Benched Pokemon, this attack does nothing.