Louise Simonson placed the series in line with the darker tone of most of the X-Men franchise; after a year on "X-Factor", she remarked that "in real life all of my friends should be happy, but in comic books all of my characters should be miserable." In "X-Factor" #10, the Marauders, a group of mutant mercenaries, severely injure Angel's wings, which are later amputated. When an interviewer commented on the brutality of this turn of events, Walt Simonson replied, "Hey, that's nothing compared to what happens to him eventually." Despondent, Angel attempts suicide by detonating his airliner mid-flight, but Apocalypse rescues him and transforms him into Death, one of his Four Horsemen, giving him metal wings and blue skin. Angel escaped Apocalypse's control, but these physical changes remain. He is renamed Archangel and becomes a much darker character, eventually rejoining the team in issue #36. Angel's replacement on X-Factor, Caliban, turns to Apocalypse for more power in issue #24, with Apocalypse leaving X-Factor his ship in return.