Shura Stealth Dragon, Kujikiricongo

(This ability is active if you have four or more damage):When a Nubatama rides this unit, choose your vanguard, and until end of turn, that unit gets +10000, your opponent chooses one card from his or her hand, discard it, your opponent chooses one card from his or her hand, bind it face down, and at the end of that turn, your opponent puts that card bound by this effect into his or her hand. :When this unit attacks, if the number of cards in your opponent's hand is three or less, this unit gets +2000 until end of that battle. /:Lord (If you have a unit without a same clan as this unit, this unit cannot attack)