The Tempestarii is a Zenith Fund developed prototype hollow that teems with electromagnetic power, which it can use to create limited, localized weather phenomena. Often seen in its jet form, it can also take a bipedal mode. Something inside of it rumbles with a distant light. One of the hollows “liberated” from the Zenith Fund’s “Occult Project” by Callister Drive Callister before defecting, and piloted by Callister himself. Side effects unknown.