Kulan Gath

Kulan Gath is a major villain in the Conan the Barbarian series and the main villain of the Red Sonja Series. He is the titular heroine's arch-enemy and also been apart of the Marvel Universe at one point

History
Kulan Gath first appeared in the Conan the Barbarian issue 14-15 in 1975 and had been since a recurring foe for him.Kulan was a sorcerer in the Hyperian Era Which was the anicent Time Period that Conan used to live.He was married at some point with the witch named Razael Gloath and wanted to use the power of Shuma Gorath for himself. He was killed by revived himself as an immortal and went on to fight Conan the Barbiran and later Red Sonja. He was killed by Shuma Gorath alongside his bride for his attempt to control his power. Mileenium later Kulan Gath was later revived and attempts to take over the modern world. He would soon fight Spider-man and transform the world into the his era and Mary Jane Watson becoming Red Sonja.Kulan later eoncounters Venom and steals the symbiote from Brock for his own plans.Spider-man and Red Sonja would later fight the venom empowered Kulan Gath but loses the symbiote thanks to Eddie Brock and was killed again.Kulan Gath was later revived again and  He would also later Fight the X-Men  and the Avengers in the Marvel Universe. Kulan Gath also shows up in the Dyanamite enetermain comics of Red Sonja once again as her arch-foe. He also has a son named D'Nar.

Powers and Ablilites
Kulan gath is a powerful sorcerer and an immortal with the ability to warp reality. He is also a cunning mastermind and manipulator. As a ghost he can posesse anyone and has knolwedge of magic.