[3] In the Middle Ages, the sorcerers who would become the Mys-Tech Board of Directors were granted immortality by the demon Mephisto in exchange for the continued sacrifice of mortal souls.
She teamed up with numerous other American heroes and anti-heroes in the process, including the X-Men (particularly Wolverine and Psylocke), Hercules, Sabretooth, Doctor Strange, the Fantastic Four and the Avengers, as well as the "soul fragments" of the deceased Nuke and Nighthawk of the Squadron Supreme.
Shevaun joined with the group, which included Professor X, Doctor Strange, Albion of the Knights of Pendragon, Death's Head, and Motormouth (the last out of pure need more than anything else) and managed to reverse time just enough so that none of the heroes died and the Earth wasn't in real danger.
Dark Angel later reappeared as one of British intelligence agency MI:13's reserve agents, battling against an army of vampires on the Moon.
This saw her tricked and captured,[7] itself a trick so Mephisto could return her full power in the enemy's base and stop a Hell invasion that he'd helped set up: it got all his energies tied up in Mys-Tech contracts returned to himself, his debts nullified, and Shevaun left as a near-powerless "Miss Tech Hacker" who'd have to deal with the inevitable problems for him.