Marvel is a pretty big on having heroes fighting villains outside their normal rogues that belong to somebody else. It happens so often, and it helps illustrate the idea that it's a shared world. What ideas do you have for such scenarios? It can be completely new, or it can be done before but here presented in a different way. Thought it might be interesting.
For me, I'd like a story where the X-Men fight the Masters of Evil led by Baron Zemo. The idea comes from the fact that the Avengers have fought the Brotherhood and Magneto, so this reversal makes sense as well. The way I see it is that Zemo might want their advanced Cerebro technology, or (depending on the status quo in this case) their Krakoan resources. He'd make a good villain to pose a mental and moral challenge to the X-Men, especially if he brainwashes several members to fight them or act as sleeper agents with a mind control device, all while he uses his followers and connections to even things out physically. Plus, his suit allows him to resist psychics himself, meaning the psychics there can't end things so easily, and that would make things interesting indeed.
What about you guys?