A Basic Pokemon Card of type Psychic with the title Unown I and 50 HP of rarity Rare from the set Mysterious Treasures and the flavor text: Shaped like ancient writing, it is a huge mystery whether language or UNOWN came first. It has the attack Hidden Power with the cost Colorless, the energy cost 1 with the description: Choose an Energy card attached to the Defending Pokemon and put it face down. Treat that card as a Special Energy card that provides Colorless Energy and doesn't have any effect other than providing Energy. Put that card face up at the end of your opponent's next turn. It has the ability ITEM with the description: Once during your turn (before your attack), if you have Unown I, Unown T, Unown E, and Unown M on your Bench, you may search your deck for a Trainer card, show it to your opponent, and put it into your hand. Shuffle your deck afterward. You can't use more than 1 ITEM Poke-Power each turn. It has weakness against Psychic +10. 
Unown I