You may have up to 4 Basic Pokémon cards in your deck with Unown in their names
Unown [I]
40 HP
Pokémon Power
[Increase]
When you play Unown [I] from your hand, you may search your deck for a card with Unown in its name and put it onto your Bench. Shuffle your deck afterward. You can't use this power if your Bench is full.
