Who Is Cassandra Nova?

Introduced in the very first issue of Grant Morrison and Frank Quitely’s run on New X-Men in the summer of 2001, New X-Men #114, Cassandra Nova is a villainous foil to the X-Men and more specifically to Charles Xavier. Returning to prominence as mutantkind undergoes a new generation of the species awakening to their powers, and as the first steps of mutant statehood begin to take form on the island of Genosha, Cassandra immediately has a devastating impact on the X-Men comics for the 21st century, setting the stage for much of the background and ideas Morrison would tackle during their run. But why does she so specifically have it in for Professor X? Well…