Davilson

Demon Lord, son of Satan or might be Satan himself.

Davilson had this thousand of years battle- no war against Azewroth. Their fight was so massive it was written down in history books as one of the deadliest conflicts in 6.6.6 or 6/06/6666S.

Davilson was as well a King with his twin brother as well as the older twin. He couldn't defeat his twin brother, but he could almost beat one of the greatest war God in history. Who claimed to be stronger than his twin, but that was never proved.

Spoilers
Davilson Lucifer is the twin brother to Ludwigsen Buckingham Lucifer, they ruled a kingdom together for a very long time. "How are a demon and this guy related?" Well... Satan met with this gorgeous Goddess, who now is not called a Goddess and instead called a Demon.

Satan Lucifer & Megum Buckingham married and made these two extraordinary twins, one demon, and one god. Davilson was the more vise and smart, while Ludwigsen was the more stupid and funny one.

They build a kingdom together, which used to be big, but the beginning of The Wand War made it smaller each passing year.

Now back to the fight in 6/6/6, Azewroth and Davilson had this massive war that now none of them remember why they fought, they think it is because of a bet or they insulted their kin.

Satan & Megum had no choice to seal Davilson and God of Power & God of Thunder had no choice to seal Azewroth.

Davilson was still quite powerful and thanks to his twin brother being alive, most of the seal doesn't work and Davilson can fight, so long he is in his own Kingdom area.

Davilson was also known for his Snake Sword dance, which he performed to hypnotize people or seduce women.

Davilson as well is part of Ordinis Tenebris, he joined it mostly to help Daagon on his quest as Daagon tries to help him on his quest to destroy the seal without too much bloodshed as Davilson wish now to live in hell to beat & as well torture people.