Civil War II: X-Men #1

Plot

Terrigen Mists circle the globe, igniting the Inhuman race while crippling mutantkind, pitting the two nations against one another. But when a new Inhuman with the ability to profile the future emerges, the X-Men fear that he may tip the scales in the Inhumans' favor, spelling doom for their kind. And one mutant is willing to wage war with the Inhumans AND his own people to prevent that from coming to pass. The X-Men enter the fray of CIVIL WAR II when the world's most terrifying mutant, Magneto, takes mutantkind's fate into his own hands!