Warlock, Hyperion, G2099, Sentinel, CMM... just to name a few of his counters.
Send a pic of your roster.I used Warlock, fairly easy with him.
I just did this last night on my junior account. Combo of SheHulk, Corvus, NF, HB, and Rmags got it done. I took the path to the left and then the Stark Spidey path to get Corvus 3 charges. I didn't have any heal blockers, so had to use what was in my toolbox. Boosted and used a revive or two. Focus on get Crossbones to drop his sp1. Good luck.
Warlock, Hyperion, G2099, Sentinel, CMM... just to name a few of his counters. When I used Hyperion his stun on sp 2 or incinerates on sp 1 werent sticking. And I was catious of just heavy parrying in case that didnt stickHad more luck with my sentinel but didnt fight well at all. Ill definitely try him again
Ultron
Wanna say I used Colossus with Omega Red Synergy for Damage and Prof X Synergy for Poison Resist, the AAR from the Fury gives Colossus Double Power Gain which means you don't need the Emma Synergy.
If you have a 5/6* white magneto your life will be much easier on this fight.
Warlock made it pretty simple, just use a poison immune