Extraordinary X-Men (2015-2017) #13

"KINGDOMS FALL"STARTS NOW! An ancient evil stirs in the periphery of Limbo, consuming mystical realms…and little does Magik suspect that the X-Men's newest charge is drawing it straight to X-Haven! Meanwhile, Colossus is rampaging across Earth…as a Horseman of Apocalypse. Can Nightcrawler and Iceman stop their longtime friend and teammate and wrest him from Apocalypse's grasp?