An alien, the being known as Lucifer was born on the planet Quistalium, in the Quistraa star system in the Milky Way Galaxy, who had invaded many worlds.
In retaliation, Lucifer dropped an enormous stone block on Xavier, leaving his legs paralyzed so that he would need a wheelchair.
There, he somehow used "ionic energy" to give himself superhuman strength and the ability to project force beams from his hands, in addition to his apparently pre-existing telepathic powers.
He continued to try conquering Earth by using his "dimensional transmitter" to imbue humans with ionic energy and turning them into his minions.
Following his defeat, Lucifer and his lieutenants Beelzeboul, Kazann, Malachi, Pazuzu, Xaphan and others were all cast down to Hell as punishment.
[11] Lucifer is ultimately defeated by Blaze and exiled back to Perdition, and senses Zadkiel's apparent triumph over Heaven from Hell.
However, after Zadkiel is unable to truly control Creation and the ultimate power that sparked it, the one true God returns in wrath and condemns the renegade archangel to Hell for all eternity, to be forever tortured by a pleased Lucifer.
[12] During a later storyline, Lucifer is able to escape from Hell by 'following' Ghost Rider during his latest escape from Hell, with the transition splintering Lucifer's soul into 666 fragments, which 'manifest' on Earth in the bodies of those who had recently died at the moment Ghost Rider crossed over,[13] with these including the latest Jack O'Lantern.
Eventually, the Ghost Rider is able to 'kill' one Lucifer fragment by ramming a truck's gear-stick through its brain and breaking its spine,[15] leaving the fragment in a brain-damaged and paralysed state but biologically still alive, allowing Ghost Rider to defeat what Lucifer believes to be his final host because it is still at half-strength, the brain-dead final host being killed by Ghost Rider's ally Dixie- a trucker Blaze had befriended earlier- and the police.
The demon version of Lucifer can create interdimensional portals, perform image projection, demonic possession, do mystical force blasts, illusion casting, shapeshifting, sizeshifting, matter manipulation, raising the dead, manipulating the dead, and regenerating the corpses of those he inhabits.
Due to the limitations of these constructs and his own twisted sense of irony, Lucifer has the duplicate Xavier use the original X-Men as his agents, sending them to acquire three components from Quistalian outposts around the globe.
Xavier attempts to warn his students, but although he can telepathically penetrate the dimensional barrier to witness events back on Earth, his abilities are subsequently too weak to access the complex minds of either Beast or Jean Grey.
With the duplicate Xavier captured, Xavier-in-Jeffrey accompanied the X-Men when they departed to retrieve the final component, and was later able to defeat an ionic duplicate of Archangel - created after the original was injured and captured while they were investigating one of the facilities - that could have allowed Lucifer to use the newly modified portal to return to their dimension.
With Xavier's return, the machine was destroyed by Cyclops and the duplicate Professor X is found to have ceased to exist, leaving Lucifer to fume and plot his revenge in the Nameless Dimension once again.