Stealth Dragon, Dualwielder

:When this unit attacks, if you have a vanguard with "Shojodoji" in its card name, [ 1 & bind one other rear-guard], choose a face up card from your opponent's bind zone, and put it on the bottom of the deck. If you did not put a card, choose a unit card from your bind zone with "Stealth" in its card name and grade less than or equal to your vanguard, and you may put it into hand.