Demon World

A Demon World is a world consumed in the infernal hierarchy of the Burning Legion after being twisted and corrupted by suffering the continued presence of Demonkind. Upon a Demon World, Fel Magic intertwines with the very substance of the planet and overlaps with reality, merging together the reality of the Great Dark Beyond with the impossibilities of the Twisting Nether. Demon Worlds are created in the path of the Burning Crusade's path of conquest. When a World is invaded by the Burning Legion, one of their first steps is to begin spreading their corruption through the planets crust. This can begin with blackened ground, fissures erupting green lava, to entire Fel Volcanos erupting and drastically altering the landscape. When a world's corruption runs too deep, however, the Fel magic will taint the very core of the World, and the planet will undergo a violent and fiery rebirth in which it is transformed into an impossible and bizarre realm where the laws of nature cease to be a constant. Upon a Demon world, gravity may not function as intended. Rocks and Stones may bleed when cut and protest when picked up. Even time may no longer function as properly intended and become subject to the whim of its demonic Ruler.

Demon Worlds are not merely Fel tainted Planets, but a foothold for the Burning Legion in the material realm of the Great Dark Beyond that cannot be reversed. Upon a Demon World, the very laws of creation break down. Every magical impulse becomes an abstract reality, every metaphor can become a literal meaning. These reality shifting effects can overcome almost any attempt to destroy them until a force of reality pulls them apart. Life upon a Demon World is inconsistent by its very nature. All Demon Worlds are strongholds of the Burning Legion. Not all worlds in the path of the Burning Crusade are destroyed. Some are incorporated into the Legion's power structure. These worlds become spawning grounds and throne worlds for all races of the Legion. Some Demon Worlds are devoted entirely to a single Demon, given over to a champion of Sargeras who has conquered a World and rewarded suitably. Many are cauldrons of warfare and violence as demonic species pit themselves against each other in eternal war where the only victor is the ensuing chaos.

A list of known Demon Worlds can be found below:
 * Mardum
 * Argus
 * Nathreza
 * Xoroth
 * Xandros
 * Dreadscar Rift