Unown [S]

Once during your turn (before your attack), you may look at 1 of your Prize cards. Return that Prize card face down. This power can be used even if Unown [S] is Asleep, Confused, or Paralyzed.

You may have up to 4 Basic Pokémon cards in your deck with Unown in their names.

It is believed that the variety of types of this Pokémon were created by evolutionary adaptation, as each possesses a different ability.