Sealed Demon Dragon, Dungaree

(This ability is active if you have four or more damage):[ 1 & Choose a card bound with this card's effect, and put it on the bottom of the deck] Choose one of your opponent's rear-guards in the front row, and retire it. This ability cannot be used for the rest of that turn. /:If you do not have any cards in your bind zone that was bound with this card's effect, this unit gets -2000. :When this unit is placed on , bind two cards from the top of your deck.