Vaal
From Wulfgard Wiki
Vaal is one of the most powerful demons of Wrath to ever exist short of Xeshm himself. An ancient and mysterious being, Vaal serves only himself... and he has many machinations.
Domain
Xeshm is the Demon Lord of Wrath, but Vaal is second only to him. An exceptionally powerful demon, Vaal is a being that feeds off rage and wishes to spread fury far and wide. He coaxes his victims into fits of anger, learning how best to manipulate them into giving in to their deepest rage and bloodlust - thus growing his own power and, he hopes, acquiring dominion over more souls.
Followers
Although he is not technically a full archdemon, Vaal has followers of his own: mostly other and lesser demons of Wrath, as well as multiple cults throughout the mortal realm.