She is primarily known as a member the original Marauders team, a group of mutants who often work for the mad scientist villain Mister Sinister.

The character has made scattered minor appearances throughout other forms of media, such as animated television series and the film X-Men: The Last Stand, portrayed by Omahyra Mota, and the video game Deadpool, voiced by Chani Krich.

Both issues served as chapters in the "Mutant Massacre" crossover that involved the X-Men, the spin-off team X-Factor, and other Marvel Comics heroes such as Thor, Power Pack, and Daredevil.

[1] Eventually, this proved problematic since modern Marvel Comics stories exist on a sliding timeline: new comics take place around the date of publication (unless specifically said otherwise) while events in the past are now understood to be pushed forward from their original publication date, compressing time so that characters do not age too rapidly or in real-time.

To address this, the 2019 mini-series History of the Marvel Universe revised canon, revealing that a war was fought for decades in the fictional Asian country Siancong, ending only a few years before the rise of the modern superhero era.

[7] Following conflicts with the X-Men in "Mutant Massacre" and the 1989 crossover "Inferno", Arclight was depicted as a member of the Femizons team in the comic book series Captain America (volume 1).

[10] Dawn of X featured a new team calling itself the Marauders formed on Krakoa, led by Kitty Pryde and involving several former X-Men members.

Sontag also trains in how to best use her mutant shock wave power in combat, combing it with her super strength in form of punches and blows.

Several years after the Siancong War, the super-powered geneticist Mister Sinister decides to wipe out a community of sewer-dwelling mutants called Morlocks.

He also learns that many Morlocks were further mutated by scientific methods based on his own research (performed by the villain Dark Beast), and is offended that his "signature" was used without permission.

[12] Before engaging on their mission against the Morlocks, Sinister sends the Marauders to kidnap Nathan Summers, the recently born child of Cyclops.

Instead, she works alongside the Marauders again, often capturing mutant test subjects[9] or fighting heroes such as Cable, all at the command of Mister Sinister.

[20] Arclight later rejoins the Marauders when the team is briefly reorganized under the leadership of Da'o Coy Manh, the half-sister of the mutant known as Karma.

After tracking a group of remaining clones that have yet to be activated, Magneto decides instead to alter their personalities to obey his own commands in the future.

[22] Magneto later unleashes his loyal Marauder clones against the international intelligence agency S.H.I.E.L.D., using them as a distraction while he destroys much of the organization's collected data on mutants.

[10] Arclight and her other old teammates take refuge in the Essex State Home for Foundlings, an orphanage formerly owned by Sinister where he secretly kept a lab and clone banks.

[28] This version is a member of the Omegas, who join forces with Magneto's Brotherhood to oppose the creation of a mutant cure, only to be killed by the Phoenix.