Mummy

Mummy: The Mummy appeared in "Under Wraps", a Thep Khufan from the planet Anur Khufos, was sent by Doctor Vicktor to find a dangerous element called corrodium that crashed on Earth millions of years ago. Grandpa Max explains that the crystals are a potent but unstable power source, and the radiation emitted by the crystals causes almost instant mutation in humans and other Earth-born creatures. Todd Maplewood, a boy Ben and Gwen met, said it arrived in purple lightning, which is the same way the Alien Werewolf arrived in "Benwolf". Max states there may be a connection between the werewolf and mummy, which is proven in "The Return". During Ben's battle with the creature, its DNA is absorbed by the Omnitrix, giving Ben access to the form. The mummy is frozen solid by Upgrade merging with a liquid oxygen device and buried, along with its corrodium, under a thick bed of concrete. It was released by the werewolf in "The Return", and assists in Dr. Vicktor's plan to plunge the earth into eternal darkness. When Ben is fighting Ghostfreak, Doctor Vicktor, and Mummy in "Be Afraid of the Dark", Doctor Vicktor inadvertently sends both himself and mummy to an unspecified location, most likely the Null Void, through an ill-timed use of his teleportation device. Ben's version of Mummy is named Benmummy. Mummy appears as an enemy in the game "Ben 10: Protector of Earth" as two enemies: Mummy and Cyclone Mummy.