[AUTO]:When this unit is placed on (RC), if you have a vanguard with "Hachisuka Kotetsu" in its card name, or you have a "Tachi's Ability Kiwame" crest, [COST][Counter-Blast 1], look at the top five cards of your deck, choose up to one unit card with a different card name from this unit and grade less than or equal to your vanguard from among them, call it to (RC), and shuffle the deck.