Campbell went on to co-create the teen superhero team "Gen¹³", which debuted in "Deathmate Black" (September 1993), before going on to star in their own five-issue miniseries in January 1994. The series was initially co-written by Brandon Choi and Jim Lee, but Campbell became a co-writer with issue #3. The team was eventually given their own regular ongoing series, which debuted in March 1995. Campbell was co-writer on the series until issue #18, and was the regular artist, leaving the book after issue #20 (June 1997).