Genesis's History
Genesis was the wife of Apocalypse and ruled the ancient mutant land of Okkara alongside him. She bore him four children who would became the First Horsemen. When Okkara was attacked by the Amenthi Daemons, Genesis led the mutants to battle. When the mutants appeared the be winning, the dark elder god of Amenth, Annihilation, offered a peace treaty to Genesis but only if she would pass a test. Genesis seemed to easily pass the test but the terms of peace Annihilation whispered to Genesis were known only to her. Genesis refused the terms and the war continued. After Genesis' sister, Isca the Unbeaten, a mutant with the power to never lose, betrayed her people by siding with the forces of Amenth, it became clear that the mutants could not win. It was decided that Arakko (one of Okkara's split halves) and all of the Okkaran mutants would be sealed off into Amenth to halt the invasion and hold off the Daemons, while Apocalypse remained on Earth to rally a new mutant society capable of repelling the demons when they inevitably returned one day.
Arakko
After being sealed away in Amenth, Genesis and the other mutants decided to make Arrako their home and built towers to protect them from the threat of the Daemons. She along with the Great Ring of Arakko ruled over Arakko for milennia, while fending off the Daemons' attacks. However, at some point in time the High Mutant Prophet Idyll foresaw the inevitable defeat of Arakko and warned the Council. Genesis dismissed the claim as nonsense, but decided to rally an army which she led on a years long crusade to end the threat of Amenth for good. Their battles became legends on Arakko and their victories were celebrated. Driving deeper into Amenth than ever before, they encountered the White Sword, and his One Hundred Champions. The White Sword had sacrificed himself to hold back the daemons during the initial invasion of Amenth and was long believed dead. The years of isolation had driven him mad and he saw no difference between Genesis and her armies and the daemonic hordes he repelled on a daily basis. He would deal Genesis' army its first defeat, eventually forcing them to retreat to Arakko.
When she returned, she found her sister Isca waiting for her, carrying an invitation from Annihilation to parlay. Genesis accepted and went to the Hall of Annihilation where Annihilation and her army awaited her. There she learned that Annihilation and the Daemons had merely been biding their time, breeding its daemons with mutant captives to create a powerful hybrid warrior race. Annihilation again offered terms of peace, but Genesis refused and the two fought. The two fought fiercely, and eventually Genesis defeated the dark god, severing the Golden Helm of Annihilation from its host. She did not realize what this meant however; by removing Annihilation from its host, she left the Amenthi horde leaderless. Without the control of its master, the horde would consume everything or die trying. The full might of Amenth attacked Arakko while Genesis remained captive in the Hall of Annihilation. For a century she refused to claim the helm until the hordes craked the walls of Arakko. Desperate, the mutants of Arakko opened a gateway to Dryador in Otherworld. Realizing that all was lost, and the daemons would soon be free to leave Amenth, she donned the helm hoping to be able to control it. She failed, and fell under the sway of Annihilation. Under the control of Annihilation, she captured Arakko and prepared to marshall her forces to invade Otherworld and ultimately Earth.
X of Swords
After pacifiying Arakko, the Annhiliation-possessed Genesis ordered an assault on Dryador. At the same time, she sent her grandson Summoner to Krakoa in order to make contact with Apocalypse and manipulate him into opening a route to Otherworld, allowing the Amenthi daemons to invade the Earth. The plan was a success, and as Dryador was destroyed and the Starlight Citadel besieged, Apocalypse was tricked into meeting his erstwhile children, now in service of Annihilation, who nearly killed him. Seeking to stop the conflict erupting on her lands, Saturnyne, the ruler of Otherworld, intervened and forced the two sides into a ceasefire. She offered to host a tournament wherein the champions of Arakko and Krakoa would face each other in a tournament to settle the matter.[4] Genesis had the Horsemen recruit their champions, and led them herself to Otherworld.
After confronting Saturnyne in the Starlight Citadel, Apocalypse, who led the Krakoan champions, would encounter his wife once more, as she revealed herself to be the latest to wear the mask of Annihilation. After that, the two met again under the Starlight Citadel where she told her husband the full true story of what had happened to them while on Amenth.
Annihilation then observed behind the scenes as the tournament went on. Following the battle between White Sword and Gorgon, the scores for Arakko and Krakoa were even, and both Annihilation and Apocalypse prepared to fight in the deciding battle. During their battle, Genesis without the Golden Helm, seemed to have the upper hand as she managed to destroy her husband's sword, but Apocalypse surprised her, seizing the Twilight Sword and shoving it through her stomach. She begged Apocalypse to kill her, but he refused prompting Annihilation to seize control of Genesis and summon almost all of the Amenthian forces to Otherworld, intending to conquer Krakoa for good. However, as the war went on the champions of Krakoa were joined by the reassembled X-Men and Captain Britain Corps and eventually the Vescora. As the war was seemingly turning to Krakoa's favor, Apocalypse was able to remove the Golden Helm off Genesis' head, causing it to possess Apocalypse. However, unlike Genesis, Apocalypse was able overcome the Helm's influence and used it to make the Amenthian forces to surrender. After that, Saturnyne transformed the Golden Helm into a staff, limiting its corruptive influence, and gifted it to Genesis. She also demanded that the two mutant nations exchange prisoners in good faith. As the ruler of Arakko, Genesis chose her husband Apocalypse to join her in Amenth, while as the representative of Krakoa, Apocalypse chose the mutant island of Arakko itself, freeing its millions of mutants from exile in Amenth. Reunited with her husband, Genesis returned with him and their children to Amenth.