Perhaps his greatest ability, however, is control over his entire cell structure, making him essentially immortal.
Also known as Nathaniel Essex, Mister Sinister is one of the most powerful foes that the X-Men regularly face off against in the comics, outfitted with incredible powers ranging from mind control to regeneration to shape-shifting.
It’s this element of the character that could be key to the future of the X-Men franchise, as one of the best things that the series could do moving forward would be to feature Sinister as the central villain in multiple upcoming projects set in different eras — including the future-set Wolverine 3, the X-Men: Apocalypse sequel taking place in the 1990s, the modern era Deadpool 2, Gambit, The New Mutants, and X-Force.
This would serve to not only unify the temporally disparate features, but also create a large-scale comic book movie narrative unlike anything audiences have ever seen – potentially leading to a showdown that would feature heroes from every chapter joining together for an ultimate showdown against the genetics-obsessed supervillain.