Mammomax

Lumbering onto the Modern Age Marvel scene in X-Men #161 (2004), courtesy of creators Chuck Austen and Salvador Larroca, Mammomax is the kind of visually striking mutant presence that reminds you just how wild the early 2000s X-Men corner of Marvel could get. With a relatively compact publication window stretching from 2004 to 2006, this character made their mark across titles like X-Men: The 198 and Civil War: X-Men, sharing pages with heavy hitters like Scott Summers and Hank McCoy. Fourteen catalog appearances may sound modest, but one of them carries key-issue weight — and for collectors who love digging into the more offbeat, dangerous edges of the mutant world, Mammomax is exactly the kind of discovery that makes the hunt worthwhile.