Mew

Once during your turn (before your attack), you may search your deck for another Mr. Mime and switch it with Mr. Mime. (Any cards attached to Mr. Mime, damage counters, Special Conditions, and effects on it are now on the new Pokémon.) Put Mr. Mime on top of your deck. Shuffle your deck afterward. This power can't be used more than once per turn.

Choose 1 of the Defending Pokémon's attacks. Copy that attack. This attack does nothing if you don't have the necessary Energy to use that attack. (You must still do anything else required in order to use that attack.) Mr. Mime performs that attack.