Evolution Monster, Davain

:When this unit is placed on , [put another rear-guard into soul], search your deck for up to one card with "Zeal" in its card name and the same grade as your vanguard, ride it as , and shuffle your deck. If you rode a card, choose a card with the same grade as your vanguard from your soul, call it to , choose one of your opponent's vanguards, and it gets -3000 until end of turn.