Shadowed Powder was a chemical created by the Shadowed Tower conspiracy, created from a variety of rare and expensive herbs found in the Scorpion lands. It was a colorless, odorless, flavorless powder that could be mixed with rice, sake, Liquid Void, or any other consumable substance. Any who consumed it found their will slowly sapped. The Shadowed Tower transferred taint from their own maho-tsukai to these victims, who "willingly" accepted to be the final targets of the corruption produced in the maho rituals.