Grant Morrison's New X-Men

Grant Morrison's three-year run on New X-Men (2001-2004) dragged the X-Men into the 21st century with a ruthless reinvention. Morrison stripped away the superhero costumes, introduced the concept of mutant culture, killed sixteen million mutants in the first issue, and systematically deconstructed everything fans thought they knew about the franchise. The run introduced Cassandra Nova, Xorn, the Stepford Cuckoos, and Fantomex, while redefining the Xavier-Magneto-Jean-Scott-Emma dynamic in ways that still echo through every X-Men story published since.