The virus mutated rapidly, diverging into millions of strains, with a 99.8% fatality rate. Soon the planet lay in ruins, the survivors, handfuls from millions, emerged to begin their lives again. It was at this time that the visions began among some of the pubescent women of the post apocalyptic settlements. Visions of the empire in the far west of the world, about the coming of the dark times at the hands of the Dark Man, the destruction of the Imperium by a creature created to save it. The following will not come to pass for another 5000 years but the planet will become the centre of a new human empire ruled over by Tak and his disciples.

Flagg crashed to the planet in an abandoned spacecraft. The spacecraft had been destined for terra and had been sent crashing to the planet by a violent warp storm. The resulting impact of the craft into the planets surface slaughtered dozens as it landed in the middle of a village. Flagg was captured and interrogated by the chief of the village. The only information he could ascertain was that Flagg was not completely human, withstanding the most barbaric tortures and will power breaking devices known to that planet.

Psychic probing by a latent psyker revealed that he had survived daemonic possession and was also a powerful telepath. Flagg had also lost his memory, but in time this would return, until then, the village chief was content to let him rot in a cell. For three years, Flagg's mind was blank, until one fateful day when an emergent cult rose up on the planet. They ritually sacrificed thirteen virgin girls, and dedicated them to the chaos god Malal. Malal gave the planet favour and selected a champion for his cause, this champion was Flagg, who was given back his memories and gifted with many talents and abilities, such as immortality and an even stronger telepathic ability.

Flagg's past was long and dark, living in the slums of Necromunda; he had feasted upon rats until the fateful day when his psychic abilities had come to the fore. He had killed many that day in Angels falls, a settlement on the top of a large access way to the underhive. Many had been thrown into the pits; others had been driven insane by his powerful mind over riding theirs. There was nothing that Flagg could do to suppress his powers until one day, he was taken in by a Scavvie Warband. They formed a family around him and he fought Spryers, Orlocks and many others, using his talents to kill many opposing gang members, they cut out a fierce reputation for themselves, until they were cornered by the Adeptus Arbeits and the local PDF, who had taken to moving down hive to find and trap them. There ensued a long battle in which most of the gang was taken away for execution or killed there.

Flagg and a couple of allies broke away, moving up hive as the k9 units of the Arbeits tracked them. Eventually they reached a docking port and hijacked it, before it crashed to he planet of Darvinius 7. Flagg, now gifted with the leadership of the cult, as its chosen leader, created an empire in the west of the planet. Three armies came against them, and they were destroyed in turn. Flagg became worshipped as Malal on earth, the physical manifestation of Malal. It was at that time that Flagg began to reach out with his mind into the warp, attempting to locate other cults, so that they may come and join him, Tak was what answered.

Tak told Flagg that he would make Flagg his supreme champion, promising him the empire of man if he would worship him and perform his work. Flagg agreed and subverted the teachings of the cult so that they worshipped Tak. Flagg then left the planet and travelled the galaxy putting into practice the machinations of Tak. He inspired a leading ecclesiarchal member to lead a holy crusade against the planet of Peraxxia. He encountered the one known as inquisitor Carter, and his protégé, inquisitor Hlokk. He was with Hlokk throughout his life at certain times and subverted the inquisitor so that he might make Tak a god.

He summoned forth the daemon Azal and his cult bound his spirit to a powerful warrior, he convinced the serial rapist and murderer Regan Dallas to begin an orgy of destruction that would leave dozens dead and more mutilated. Across the Imperium in the last 7000 years he has been responsible for hundreds of terrorist suicide bombings, cultist uprisings. Rumour has It that it is he who opened a Necron stasis tomb on the planet of Majolnir to release the evils that awaited there. He has slain Eldar, Orks and humans without number and without pity, always to further his own plans. He is the true subverter of the ways of the galaxy.

Tak has told him the end times approach and soon the sacrifice of the emperor's soul must be made. So the end game is begun and, if successful and Tak is made into a new god of humanity, Flagg will become the new emperor of humanity.