:Forerunner
:[Put this unit into your soul] If you have a vanguard with "Duo" in its card name, choose up to one of your other rear-guards, and return it to your hand. Choose up to three cards from your hand, and reveal them. If you revealed three cards, and all the revealed cards have the same card name, choose up to three of your units, and they get +4000 until end of turn.