Overview
Deimos is a fictional character appearing in DC Comics publications and related media, commonly as a recurring adversary for the superhero Warlord. He is a wicked sorcerer created by Mike Grell debuting in 1st Issue Special #8 (November 1975), and is a distinct character from the Olympian god of the same name, a different DC Comics character who is an enemy of Wonder Woman.
Fictional character biography
Initially Deimos used advanced New Atlantean science to achieve his ends, later he became an adept of black magic. Deimos was a high priest of the kingdom of Thera who used knowledge hidden in the legendary Scrolls of Blood to ascend to the throne of that city-state. Not content with a single city-state, he plotted to conquer all of Skartaris only to be foiled by Travis Morgan—now known as the Warlord.
Mask of Life
Deimos was killed by Morgan after kidnapping the hero's paramour, Tara. However, he was soon resurrected by one of his lackeys using the Mask of Life. Deimos initially pretended to be a sorcerer, but his power actually came from access to New Atlantean technology. After being resurrected by the Mask of Life, Deimos became immortal and could transform himself into a serpent or dragon. He could also summon demons from an unknown dimension to do his bidding. The vengeful Deimos kidnapped and cloned Morgan's son Joshua to do battle with his father. Morgan slew both the Joshua clone and Deimos.
Evil One
Deimos was resurrected several more times before striking a bargain with the Evil One. The Evil One brought the would-be conqueror to life a final time, but stripped him of his powers. Eventually, Morgan and Deimos entered combat for the last time, and Deimos was killed and his head thrown to a wolf pack.
From Wikipedia (CC BY-SA 4.0).