Raksor was created by Chris Claremont and John Byrne.
Warlord Raksor of the Skrull Empire was charged by Empress Rk'lll to observe the Shi'ar Empire's judgment and subsequent execution of the Phoenix, who was then believed to be the mutant Jean Grey. To save "Grey," Professor Charles Xavier invoked the Arin'nn Haelar, a duel between the accused and the accuser; if the X-Men managed to defeat the Shi'ar Imperial Guard, Phoenix would be spared. Skrull Empress Rk'lll and the Supreme Intelligence of the Kree ordered their respective representatives, Raksor and Bel-Dann, to monitor the trial. During the ensuing battle between the mutants and the Imperial Guard, Raksor used his shape-changing abilities to take on the appearance of Storm, intending to kill the X-Man Wolverine. However, the Canadian mutant's heightened senses allowed him to penetrate the Skrull's disguise, and he attacked him. Bel-Dann saved Raksor, stunning Wolverine with a Kree weapon. The Kree colonel reminded his Skrull opposite that they were meant to be observers rather than participants in the battle. Raksor, feeling his honor was insulted, attacked Bel-Dann.
The two battled in the catacombs beneath the Blue Area of the Moon for months, neither gaining a clear advantage over the other. Finally, Uatu the Watcher interrupted their combat to relay communications from their respective leaders. Empress Rk'lll and the Supreme Intelligence had mutually decided to find a resolution for the eons-old war between the Kree and the Skrull through singles combat. Both Bel-Dann and Raksor accepted the honor, and shook hands as they prepared for battle.
Meanwhile, after the events of The X-Men #137 - The Fate Of The Phoenix!, the Inhumans were forced to relocate Attilan, their great refuge, to the oxygen-rich Blue Area of the Moon. On the day of the wedding of Black Bolt, king of the Inhumans, to Medusa, with the Fantastic Four in attendance, the combat between Raksor and Bel-Dann in the catacombs created tremors through Attilan. Investigating, the Fantastic Four and the Inhumans found the two alien combatants and engaged them. However, the Watcher appeared and informed both Mister Fantastic and Black Bolt of what was transpiring. The two group leaders formulated a plan, which they set into motion. The Fantastic Four and the Inhumans engaged both Bel-Dann and Raksor; rather than take advantage of the combat to attack one another, the two warriors worked together to defeat the heroic interlopers. Uatu appeared on the scene, declaring the Kree-Skrull War over, and both sides victorious. The Watcher then sent them back to their respective Empires to report the outcome.
Raksor possesses the inherent shape-changing abilities of the Skrull race. Having ascended to the rank of Warlord in the Skrull Armada, he is extremely proficient in both unarmed combat, as well as in the use of his people's weaponry. During the ritual combat to determine the victor of the Kree-Skrull War, Raksor was given access to advanced Skrull weaponry, such as strength-enhancing gauntlets.