Civil War II: X-Men #3

Plot

An Inhuman with the ability to profile the future has emerged, upsetting the delicate balance of power between the Inhuman and Mutant nations. Refusing to let his people fall by the wayside, the mutant master of magnetism, MAGNETO, gathers those who sympathize with his cause to aid him in his crusade: an assault on Attilan to take the new Inhuman off the board!