X-Men vs Fantastic Four Doesn't Have the Easy Answer You Think, Marvel Confirms

As two of Marvel’s oldest superhero teams, the X-Men and Fantastic Four have teamed up on numerous occasions, but there are other connections tying them together. Reed Richards and Charles Xavier founded the Illuminati together with Iron Man, Doctor Strange, Namor, and Black Bolt. Until the Krakoa era, Reed and Sue Storm’s son, Franklin, was considered a mutant. Johnny Storm and Rogue are close friends. The list goes on, but the point being that the times these two teams have been in conflict with one another are few and far between.