:[Counter Blast (1) - Cards with "Seal Dragon" in its card name] When this unit is placed on or , if you have a «Kagero» vanguard, you may pay the cost. If you do, choose one of your opponent's rear-guards, retire it, your opponent look at up to four cards from the top of his or her deck, searches for up to one grade 2 from among them, calls it to , and your opponent shuffles his or her deck.