Xivilai are highly intelligent Daedra that look like tall and muscular blue/gray-skinned warriors with piercing yellow eyes. They are similar in many ways to other humanoid daedra like the Dremora, in terms of appearance, personality, and temperament, but are of greater power and disdain subordination, being liable to disloyalty and betrayal when they feel they have not been treated with the proper deference and respect. They are most commonly seen in the service of Mehrunes Dagon and Molag Bal. They often wield two-handed weapons and cast a wide variety of spells, including one to summon lesser Daedra.
Xivkyn are an intelligent race of Daedra who were created by (and swear fealty to) the Daedric Prince Molag Bal. They were created to serve as his personal guard, and are the product of experiments with vestigial hybridization between Dremora (or "Kyn") and Xivilai in the Vile Laboratory. They are fiercely loyal to Molag Bal, and were in charge of the Daedric occupation of the Imperial City during the Planemeld.
They appear as tall humanoid Daedra that possess blue-grey skin and ridged black horns that vary in length and curvature. Apart from the standard rack of horns, they may also have smaller horns on their forehead, crown, or chin. They also have sunken icy blue eyes resembling their master's, as well as tapered ears. They tend to tower over their Dremora subordinates.