Covert Demonic Dragon, Aragotoark (V-SS09/067EN)

Shadowstitch -[AUTO](VC) Generation Break 2 :At the end of the battle that this unit attacked a vanguard, if the attack did not hit, choose up to three of your rear-guards, search your deck for up to one card with the same card name as each of those units, call them to separate (RC), shuffle your deck, and at the end of that turn, return the units called with this effect to your hand. [AUTO](VC/RC): When your drive check reveals a card with the same card name as a unit on your (VC) or (RC), you may put the revealed card on the bottom of your deck. If you do, draw a card, choose one of your units, and it gets [Power]+4000 until end of turn.