The XVerse is filled with fearsome foes, and these are some of the fiercest villains of all! Magneto, the Master of Magnetism, has world domination on his mind and the power to achieve it but not if the XMen can stop him! When the savage Sabretooth crashes Wolverine's birthday dinner, it puts the love of Logan's life in danger! As the agesold history of Apocalypse is told, he unleashes his Four Horsemen on XFactor and one of them is frighteningly familiar! And the scheming Mister Sinister cooks up a deadly threat in his cloning vats that even the combined might of SpiderMan and the XMen may be unable to stop! Collecting UNCANNY XMEN (1981) #1 50, WOLVERINE: FIRST CLASS #2, XFACTOR (1986) #24 and XMEN/SPIDERMAN #4.