Dark Khan was created when Darkseid was merged with Shao Kahn, due to a combination of Superman's heat vision destabilizing Darkseid's Boom Tube and Raiden's lightning bolt striking the portal as both enter it, this merged being was the focal point of what was referred to as the "world merge crisis" and had the powers of both and something else - Kombat Rage, which agitates the heroes and villains of both universes until they become enraged, which drives them to fight, which released the rage and hastened the merging of the two universes, which can make those affected see their friends or even the unfamiliar as their worst enemies.
His existence also had an additional side-effect, energies of the heroes and villains were being siphoned to others, making them stronger or weaker than normal. It also created energy rifts that make half of one part of Earth appear on another (e.g. Themyscira and Shang Tsung's Island).
Dark Kahn is the final boss in Mortal Kombat vs. DC Universe in an area which is a merged version of Apokolips and Outworld, consisting of Darkseid's and Shao Kahn's palace split in two divided by an energy rift and large pieces of the world floating like asteroids (which for some reason have normal gravity). Once he is defeated, Darkseid and Shao Kahn separate and end up switching universes, with Darkseid chained in the Netherealm and Shao Kahn imprisoned in the Phantom Zone.
- 2 Appearances of Dark Kahn (Mortal Kombat vs. DC Universe)
- 1 Images featuring Dark Kahn (Mortal Kombat vs. DC Universe)
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- Character Gallery: Dark Kahn (Mortal Kombat vs. DC Universe)