Arclight was once a soldier serving in American peacekeeping forces during a conflict in Southeast Asia. The experiences there severely traumatized her, and she retained bitter memories of that place. She used her rage to fuel her bodybuilding, which she further used to augment her mutant abilities.
At some point, Sontag became a member of the Marauders, a team of superhuman assassins brought together by the mutant thief Gambit when he was in the employ of the enigmatic Mister Sinister. On Sinister's orders, the Marauders massacred the underground community of mutants known as the Morlocks. Possibly the cruelest of the Marauders, Arclight took great delight in murder and mayhem, always eager to prove herself up against an opponent with a reputation. In the course of the massacre, the Marauders clashed with various superhuman champions, including the superhuman mutant adventurers known as the X-Men and X-Factor. Her physical strength was gained half due to her mutation and half to her obsessive bodybuilding, her defense against the wartime nightmares which still plagued her in secret.
Arclight and the rest of the Marauders originally died during the demonic invasion of Manhattan that came to be known as the "Inferno", but Sinister had the technology to clone the Marauders thanks to him retaining samples of their DNA. Thus, Arclight continued to appear among the Marauders in all subsequent activities, including their battles with Cable and X-Man, each time on behalf of Mister Sinister. 
For a brief time, Arclight served as a member of the Femizons, an all-female superhuman army led by the other-dimensional warrior woman known as Superia. During this time, Arclight clashed with the super-soldier Captain America and the mercenary named Paladin.
After the House of M events, Arclight joined the mutant refugee camp on the grounds of the Xavier Institute, the inhabitants of which came to call themselves the 198. She seemed to have a romantic relationship with fellow Marauder Scalphunter and didn't hesitate to use this relationship to cement her tenuous position as second-in-command.
For unknown reasons, Arclight left the 198 team and rejoined her former longtime team the Marauders. Arclight, along with the help of the Marauders, and new members Mystique and Lady Mastermind attacked the X-Men unexpectedly.
More recently, Magneto managed to find Mr. Sinister's cloning machines and used them to produce new clones of the Marauders, including Arclight, this time to help his mutant cause.
After being resurrected, the Marauders struck off on their own, once again massacring the Morlock population. This lead an angered Chamber, their new leader, to rejoin the X-Men. When the X-Men re-encountered the Morlocks, the Marauders fought briefly, but ultimately surrendered, professing their innocence. Not believing them, Chamber burned them to death with his psionic flame.
An Arclight from Mr. Sinister's clone farm beneath the Essex Home for Foundlings was later seen being mutilated and tortured by the Goblin Queen during a mystical ritual. The Hellions were sent to investigate and possibly recruit the legacy Marauders at Scalphunter's request. However, the Hellions were quickly ambushed by the Marauders, transformed into zombie-like creatures under the Goblin Queen's control. During the battle, Arclight deceived Scalphunter by begging him to save them, allowing for her teammate Harpoon to impale him from behind.
Arclight eventually regained her senses when the Goblin Queen's control over her lifted, but Scalphunter shot and killed Arclight to spare her from living as a zombie. The Council of Krakoa decided to resurrect all of the legacy Marauders, including Arclight, but without their genetic enhancements from Mister Sinister.
Powers and Abilities
- Shockwave Generation: Arclight can direct a wave of focused energy by striking a victim with her hands or feet. This typically creates a massive shockwave, damaging and/or disorientating all within her line-of-fire, shattering objects, and creating shock waves. Her hands give off a bright light upon impact.
- Superhuman Strength: Arclight possesses superhuman strength allowing her to lift approximately 50 tons.
- Superhuman Durability: Arclight possesses a high degree of durability, protecting her against such damage as impacts caused by being struck by superhuman opponents.
- Superhuman Endurance: Arclight's endurance is far superior to a normal human's.
- Superhuman Stamina: Arclight's stamina is far superior to a normal human's.
Arclight is trained in covert ops, and is an above average hand-to-hand combatant.
Strength Class 50
- Dyed her hair purple. She has dyed it blue, white, and pink as well.
- Arclight's codename comes from the B-52 bombings during the Vietnam War, also called Operation Arc Light.
- Arclight was at one point depicted as unusually tall, and with the physique of a body-builder, but in recent appearances she has gained a more conventional comic-book female appearance.
- Arclight's cloning partner in the Marauders is Vertigo.
- Arclight is romantically involved with team member Scalphunter.
- 49 appearance(s) of Philippa Sontag (Earth-616)
- 9 minor appearance(s) of Philippa Sontag (Earth-616)
- 1 mention(s) of Philippa Sontag (Earth-616)
- 28 image(s) of Philippa Sontag (Earth-616)
- 1 victim(s) killed by Philippa Sontag (Earth-616)
Links and References
- Philippa Sontag (Earth-616) on Wikipedia.org
- Danny Wall's Unofficial Handbook to the Marvel Universe