Unown U (MODN2 51)
Poké-Power
Undo
Once during your turn (before your attack), if you have Unown U, Unown N, Unown D, and Unown O on your Bench, you may return your Active Pokémon and all cards attached to it to your hand.
Hidden Power
10
weakness: x2
resistance: none
retreat cost: 1