I was reading a post about which heroes lack strong personal nemesis villains and thought about villains who have moved beyond their original 'nemesis' and become more widely used.
Darkseid, started out a New Gods villain, now is more of a Justice League adversary.
Black Adam, started out Captain Marvel's dark reflection, but has increasingly appeared facing other heroes, or even working alongside them.
Deathstroke, one of the original Teen Titans foes, now 'graduated' to being a more general threat (particularly on the Arrow show, where he's a Green Arrow villain, instead, since GA didn't have a terribly deep bench of regular foes to use).
Any other villains who started out one heroes 'nemesis' and have sort of leveled up, or just switched to a new hero more or less permanently?
Or the opposite, someone like Despero started out, IIRC, as a foe of the entire Justice League, and now is more seen as 'Martian Manhunter's nemesis,' which, for all that MM is an entire cul de sac full of powerhouses, still seems like a demotion...