From the moment they set foot in the Marvel Universe, the X-Men have faced off against some of the most terrifying threats that their world has to offer. For years, these came in the form of largely existential and political enemies, though the X-Men always had their fair share of more literally monstrous menaces to deal with of both the mechanized and mutant variety.
Source：https://www.cbr.com/31-days-of-halloween-uncanny-x-men/
