In addition to high popularity and strong sales, both titles were helmed by respected, established writers, in Chris Claremont (X-Men) and Marv Wolfman (Teen Titans).

Given the success of each title, Marvel and DC recognized the sales potential of a jointly published crossover, with X-Men writer Chris Claremont scripting the story and Walt Simonson and Terry Austin providing the art.

Professor X and Cyclops convince what is left of Jean Grey's human consciousness that she is being manipulated, and she once again sacrifices herself to defeat Darkseid, repairing all the damage in doing so.

[4] The Slings and Arrows Comic Guide wrote that "Claremont courageously defies tradition by filling an unbalanced basket of guest stars, and Walt Simonson's first-rate pencils contribute to the finest Marvel/DC co-production.

Continuing disagreements between Marvel and DC and Pérez's anger over the demise of the JLA/Avengers book[12] resulted in the eventual cancellation of X-Men/Teen Titans #2 as well.