I can also recommend Void, but Cosmic Ghost Rider also worked surprisingly well for me. You have to wait out the initial soul imprisonment but after that you can play him fairly decently. You might have to change up the rotation somewhat so that you can maximize the power gain buff so that it allows you to reach 2 bars of power before Mephisto throws a special, but all in all it worked much better than I anticipated.
Pro tip just do epic with general counters (void, HT with prefight) and if worst comes to worst you could probably nuke him down with whoever. Then you know mostly what nodes the higher difficulty has and you can adjust if need be.
Just a note guys. Don't use Torch without pre-fight, a blunder I did out of hastiness. There is no way we can afford to win the fight, unless he throws his specials often.
Comments
I went in blind for Guillotine
I can't try the same for Mephistopheles....
@odishika123
Hmm I'll use Apocalypse
With pre-fight, it's a joke.
Um...yes?