So a dimensional rift has opened up, and an evil Justice League (Superman, Wonder Woman, Batman, Green Lantern, Flash, Aquaman, Cyborg, Martian Manhunter, and Hawkwoman) comes into the 616 universe hunting mutants. All that's left is a team of 12 mutants to stand up to them. Who do you choose, who will lead your team, and does your team really stand a chance?