Oochidori Juumonji Yari Ceremonial Attire

[AUTO]:When this unit is placed on (RC), [COST][Counter-Blast 1], look at the top seven cards of your deck, choose up to one grade 3 unit card from among them, reveal it and put it into hand, and shuffle the deck. If you did not reveal a card, [Counter-Charge 1]. If you revealed a card with "Oochidori Juumonji Yari" in its card name, this unit gets [Power]+5000 until end of turn.