You know who could be a good villain from Storm's wider universe that Black Panther could share with her that would have been better than Adversary?
Nekra.
Again. He's the mother####ing King of the Dead.
Nekra can go team up with a beefed up Baron Macabre to take on Storm and Black Panther.
Mandrill can get offed by the Dora Milaje though, he sucks.