Knight of Contrivance, Nachalant

[AUTO]:When this card is revealed during your drive check, if you have a grade 3 or greater vanguard with "Leuhan" in its card name, you may call this card to an open back row (RC). [ACT](RC):If you have a grade 3 or greater vanguard with "Leuhan" in its card name, [COST][put this unit into soul], choose a non-sentinel normal unit from your drop, and put it on the bottom of the deck.