Uncollected with 4* rank 4s?

EpicGOAT

I have duped GP, Blade, AA Rag Hulk, and Stark at 4* rank 4s and 3* GR and DAMM for synergy's.

What's the best team to take to uncollected? I just finished act 4 and trying to figure if possible to complete uncollected and how many units will it cost.
Also is round 4 of Michael B challenge equal to master difficulty or uncollected?

Livix05

Is far way form being the same level as Michael B challenge .

Plus to be uncollected is to have the right heros as well .

Try 5.1 and see if you can do it without any cost