Amazing X-Men #16

"THE ONCE AND FUTURE JUGGERNAUT 2 of 4 • Attempting to create a new Juggernaut, the Gem of Cyttorak is calling out. • And none hears the call more than those who have previously housed the power of Cyttorak, Cain Marko and Colossus. • But they aren't the only ones out to find the Gem. Can the X-Men uncover its location before it's too late? And can Colossus resist the temptation of the power of Cyttorak? Rated T+ "