Seth was assigned to sabotage a satellite formerly used by the high evolutionary to strip all mutants of their mutations. At the time of Seth's mission, NASA and the X-Men were attempting to transform the satellite a habitable space station for peaceful purposes.
Seth romanced Shadowcat and infiltrated the station. Later, he paralyzed Shadowcat with the intent of rescuing her alone while the others on the station perished. While he failed to abduct Shadowcat and kill anyone on board the station, he did succeed in destroying it, escaping in a power suit.