Been a minute since I did it so I don't remember my full team, but I know that Storm and Onslaught were my MVPs and pretty much all I used. Sinister is also a very good alternative route to them.
if you take Simister, grab Cable for the synergy that boosts your degen damage. I am pretty sure I took Onslaught, Sinister, Cable, White Mags and PX.
Sinister + cable + px would nuke everything, use onsyy for easy time against wiccan. Bring someone for psychodude
Are you doing just the Carina or do you need to do a full path and double dip to get a lane done out of Necro?
The thread with multiple runs and strategies.
I am also planning to do Mutant, but not sure which would be easier, I pretty much have all champions now. Who is PX ? Deadpool X-force ?
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professor X. Lots of synergy bonuses for various mutants. Can also take some fights if you go down the path where they evade your second medoum
Bring Apocalypse and make Sinister your Horseman, and then just destroy everything.
I recently made my mutant run, my team were Onslaught (rank 3), Professor X and NS (rank 2 both), I carry white magneto for prefigths (for H. Monkey) and ciclops.
Sauron - Professor X
Hit monkey - Profesor X (with white Magento prefigth)
America - NS (launch sp 3 first)
Galactus HERALD - Onslaugth (block last special hit preferably sp 1, he has a timer if runs out he will gain his galactus favor (I don't remember how is called but is in his abilities) so make sure to take down)
Captain Britain - Professor X
The scarlet witch son - Onslaught
The guy with a box that shows emotions - Onslaught (this is the hardest figth).
I don't remember the names of those champions, you could go for full run if chose the right path after you finish the mutant challenge, the only hard figth will be Sam Wilson, otherwise is pretty easy with Onslaught.