With the sad state the X-Man villains have been in for the last decade at least they need to mine the vaults and bring some back. They went crazy in the 90's and early 00's killing off villians left and right until there were none left. With that said the ones I want back are the Externals. Master manipulaters with centuries of experinece are always good to have around and them all being mutants makes it even better. Gideon, Saul, Nicodemus, Absalom, Candra, Crule, and Burke reworked with a modern touch could be the next Hellfire Club. Plus Selene and En Sabah Nur are still running around anyway.