X-Men #100

X-Men #100, published in August 1976, serves as a major milestone in the series, marking the conclusion of the 'Magneto War' storyline. Written by Chris Claremont with art by Dave Cockrum, the issue is remembered primarily for the departure of the original team members and the final battle between the new X-Men and Magneto aboard a crumbling space station. This transition was a pivotal moment in the comic's history, solidifying the new, diverse roster that Claremont would go on to define for decades.

The creative direction for this era focused on revitalizing a title that had spent years in reprint territory. Dave Cockrum’s character designs brought a fresh, international aesthetic to the X-Men, moving away from the classic uniform look of the 1960s to create more distinct, individual silhouettes. The issue was well-received by readers at the time, as it successfully bridged the gap between the X-Men's legacy and the high-stakes, character-driven soap opera style that would eventually lead to the franchise’s massive commercial success in the 1980s.