EN - X-Men (2010 2nd Series) #02A

Curse of the Mutants, Part 2
Upon discovering that San Francisco has been invaded by Dracula and his vampire army, the X-Men set out to find the evil and destroy it. But when Blade the Vampire Slayer shows up and drops a bombshell, the X-Men realize all of their assumptions have been wrong. Their only chance to survive hinges on a desperate plan which might prove their undoing.