Battle with Soichiro, Saber

AUTO [①] When this card attacks, if a card named "Armor Release" is in your climax area, you may pay the cost. If you do, look at up to four cards from the top of your deck, choose up to one 《Master》 or 《Servant》 character from among them, reveal it to your opponent, put it into your hand, put the rest into your waiting room, and this card gets +5000 power until end of turn.