of jealousy. He also experimented on himself using a gene sample of DC's Doomsday, transforming him into Doctor Doomsday. Combat Colin Doctor Doom made an appearance in Marvel UK's Combat Colin strip. A superheroes convention is attacked by the robotic Steamroller Man. After Combat Colin and his sidekick Semi-Automatic Steve defeats the robot, its controller is revealed to be Doctor Doom, who explains that after years of being defeated by American superheroes he thought (wrongly) he could stand a chance against some incompetent Brits. The final panel shows Doom back in his lair, surrounded by newspaper cuttings detailing his past defeats and wondering how he would do in a fight with Thomas the Tank Engine. Doom Supreme A Doctor Doom from an alternate reality has gone by the name of Doom Supreme and is the master of the darkest arts. He used to love a woman named Valeria so much that when she died, he removed the flesh from her bones and forged it with an armor through the power of sacrifice which he also did the same thing when he tortured anyone who defied him when he became his world's Sorcerer Supreme. To power his armor, Doom Supreme went after some alternate versions of himself and sacrificed them while intimidating others like a giant Doctor Doom to swear their allegiance to him. He has described himself as "the Doom who breaks other Dooms". Doom Supreme later witnessed the fight between the Prehistoric Avengers and a younger Thanos. After watching that battle, Doom Supreme is approached by Mephisto who advised him to put together a variation of the Masters of Evil from the evilest villains throughout the Multiverse and to conquer it while saving Earth-616 for last. Doom Supreme was able to do that by gathering Black Skull, Dark Phoenix and her Berserkers, Ghost Goblin, Kid Thanos, and King Killmonger. They attacked the Prehistoric Avengers of different Earths, slew them, and took over their worlds. Though they violated the order to save Earth-616 for last and arrived there where Doom Supreme slew Orb, broke the Watcher's eye in his possession, and sent some of his Multiversal Masters of Evil to fight the different members of the Avengers. Doom Supreme and Kid Thanos attacked Avengers Mountain where they fought Black Panther, Namor, and Valkyrie before Avengers Mountain exploded. After a talk with Mephisto's dog form and Iron Inquisitor, Doom Supreme puts