Avidity Slurper

:When this unit is placed on from hand, you may reveal a "Purgatory Dragon Deity, Favrneel" from your ride deck. If you revealed a card, or your vanguard is "Purgatory Dragon Deity, Favrneel", 1, search your deck for up to one grade 3 or greater card with "Favrneel" in its card name, put it into soul, and shuffle the deck. :When this unit boosts a grade 3 or greater unit, until end of that battle, this unit gets +2000, if the sum of the grades of 《Dark States》 cards in your soul is thirteen or greater, choose one of your units, and it gets +5000 until end of turn.