Deadpool is ostensibly part of the larger X-Men franchise, but he's not actually a mutant himself. At least, that was the case until Marvel's Age of Revelation crossover. As part of that ...

Deadpool & Wolverine went through quite a few different iterations after first being announced as Deadpool 3 and we've known for a while now that at least one of them involved Mephisto. We're not sure ...