The Ningizzida clan is an ancient sect of ghouls given to worship of the ancient Summarian god Ningizzida. Ghouls of this variety take on an almost snakelike or serpentine behavior. Ghouls from this clan have an extremely toxic venom that can secrete from their claws and bites.
The leader of the clan is always female and referred to as Azimua. It is unclear if it is the actual name or a title.