Shatterstar first appeared in The New Mutants vol. 1 #99 (March 1991), and was created by Fabian Nicieza and Rob Liefeld. Since his debut Shatterstar has mainly appeared in the original X-Force title, with some issues devoted solely to him. In 2005, the character was featured in his own limited series, X-Force: Shatterstar. Shatterstar became a member of X-Factor in X-Factor #45 (August 2009).
Fictional character biography
Shatterstar comes from the planet Mojoworld (about a century in the future, as opposed to the Mojoverse which co-exists with the contemporary Earth dimension, making him a time traveler as well as a dimension-hopper) which is ruled by the alien tyrant Mojo. There, Shatterstar was created to be a slave; he claims to have had no parents, only a "gestation chamber." He was genetically engineered to have enhanced physical capabilities so he could serve as an arena gladiator.
Shatterstar learned the arts of battle as a warrior in arenas on Mojoworld, where he participated in combats staged for Mojo's television programs. It’s assumed it was here he developed his strong sense of honor and pride as a warrior, to combat the constant violence and death in his life. Eventually he escaped and joined the Cadre Alliance, the rebel group that sought to overthrow Mojo's dictatorship. From there, he learned the Cadre's language and began taking part in missions.
On one of these missions, Arize sent him back in time to Earth to find the X-Men and get their assistance in defeating and overthrowing Mojo. He did not find the X-Men though. Shatterstar was either teleported or traveled back in time to Earth at the point just before Cable reorganized the New Mutants into X-Force. At first, he battled Cable, Domino, and the New Mutants, but after they talked with him the mutants aided him against the Imperial Protectorate. With Cable's assurance that they would help him defeat Mojo (though with the use of time travel it was not urgent that they leave anytime soon) Shatterstar became a founding member of the new team, X-Force.