manipulation of her feelings cause her to love Havok, bringing her much conflict and frustration because she knows he loves Polaris. The lineup was selected by the X-Factor editorial staff. Legion was to be a member as well, but was dropped because it was felt the character was not suited to be a team player. David was instead given the option to use Quicksilver, which he has said was a pleasant surprise. Commenting on his approach to the series, David said that his priority was to tell stories which developed the individual characters of the team, remarking "I feel there's nothing unique to the book if you come up with a generic plot and just plug in these characters." David left in 1993. The series continued under writer J. M. DeMatteis and artist Jan Duursema, but struggled to distinguish itself among other X-books. Shortly after David's tenure on the book ended, Forge, a former government weapons contractor whose mutant powers were his brilliant engineering skills, was added to the group; first replacing Cooper as their liaison after she had been compromised by one of Magneto's Acolytes, and later as an active member. Cooper later becomes an active member as well, her marksmanship and athletic skills compensating for her lack of superhuman powers. In a 1995 story, Multiple Man apparently dies of the Legacy Virus, a deadly illness that attacks mutant genes, which is later revealed to have only killed one of his duplicates. Strong Guy is put into suspended animation after suffering a heart attack caused by the stress his extra mass put on his body. Wolfsbane, cured of her artificial love for Alex, transfers to the European mutant team Excalibur. Havok leaves to infiltrate a mutant terrorist ring. Writer John Francis Moore and illustrator Jeff Matsuda introduced a new X-Factor line-up, consisting of Forge as the team's new leader, Polaris, Cooper, and several new recruits: Mystique – A shapeshifting mutant criminal and master of espionage. Mystique is forced to join X-Factor following her capture by federal agents. Sabretooth – A homicidal mutant criminal who possesses talons, heightened senses, and a healing factor. Like Mystique, Sabretooth is a captive member that Forge uses special technology to control. Shard – A holographic computer program with the personality of the X-Man Bishop's deceased sister of the same name. Bishop is a time-traveler from a distant future, where he and Shard are members