Apophis

Dark-colored serpents that are said to carry the power of the Nether Realm within themselves, apophis are monsters created by gods as adversaries of the pharaoh. It’s their duty to prevent the awakening of the pharaohs who sleep within the ruins of the desert. In the age of the former Mamono Lord, many pharaohs were buried forever at the apophis' hands, never to awaken. The desert is dotted with master-less and abandoned ruins as a reminder of this. However, that is an ancient tale, and as of the present, the apophis’ nature has been changed due to the influence of the new Mamono Lord, and they no longer kill pharaohs, although they do still oppose them.