Tempest Stealth Rogue, Fuuki

:[ 1 & Put this unit into your soul] If you have a Nubatama vanguard, and the number of cards in your opponent's hand is three or more, your opponent chooses a card from his or her hand at random, binds it face down, and at the end of that turn, your opponent puts the card that was bound with this effect into his or her hand.