Steam Hunter, Emen-bara

[Bind zone]: 1 If you have a vanguard with "Chronofang" in its card name, call this card to . Then, you may choose one of your opponent's rear-guards. If you do, your opponent returns that unit to his or her deck, searches for up to one card with grade -1 than that card, calls it to , and shuffles his or her deck. (Your opponent can choose not to find a card if there is none he or she wishes to call)