Deviance edges are, in large part, the abilities of a war leader, based around preparing for and engaging in battle. They are specific to Waywards; it's possible for other Imbued to learn them, but they must have a strong Vision, and the price for the knowledge is the Waywards' murderous madness. Those Imbued who follow Zeal and Mercy only find that madness compounded with each new Deviance edge learned.