New X-Men
Cassandra Nova commandeers the Shi'ar invasion fleet in Xavier's body and heads back to Earth. The X-Men prepare for her return.
Collects New X-Men #114-126, X-Men 2001. Grant Morrisons New X-Men begins with E for Extinction -- Cassandra Nova destroys Genosha.
Collects New X-Men #114-126, X-Men 2001. Morrison complete first act on New X-Men — E Is for Extinction through Imperial.
Collects New X-Men #114-154 and Annual 2001
Collects New X-Men #114-154; X-Men 2001.
Collects New X-Men #114-126, X-Men 2001. Morrison's revolutionary run begins -- Cassandra Nova, Genosha's destruction, and a bold new direction.
Collects New X-Men #118-126. Morrisons Imperial arc -- the Shiar Empire falls and Cassandra Nova reveals her masterstroke.
Collects New X-Men #118-121. Morrison introduces Fantomex and sends the X-Men to the Weapon Plus facility.
Imperial. Cassandra Nova takes Xavier's body to the Shi'ar Empire and nearly destroys it. Jean Grey begins manifesting Phoenix-level powers. The scope of Morrison's ambition becomes clear — this is not a superhero book anymore
The scope expands. Cassandra Nova hijacks Xavier's body and travels to the Shi'ar Empire to destroy everything he built. Meanwhile, the X-Men deal with a world that now knows Xavier is a mutant. Jean's Phoenix powers resurface. Xorn, the mutant with a star for a brain, is introduced in a standalone issue (#127) that ranks among the best single X-Men issues ever written