Very quick q, which I am sure has been addressed a gazillion times (but search functionality yielded nothing), what to do with newly acquired, but high quality 3* covers.
I am still working on getting my 1* guys to 30-40 range, and got three 3* covers:
Black Widow (grey)
Loki
Black Panther
I am out of roster space (13/13). I realize that it will be a very long while until I can use them. Fwiw, Panther is not claimed and will expire in 6 days.
My 2* list is:
You say you have 13 slots and 6 2*s. Is BP the only listed cover not already in your roster? If so, chuck Loki, recruit BP. Loki is just terrible.
More generally, you really only need 3-4 1s. IM35 + MStorm + MBW is probably the best core team, and Juggernaut is great on defense. All other 1s can go.
I would try to keep loki as there is a high chance of a villain centric pve happening next. What. 1*s do you have? Generally its safe to get rid of all of them except the core 3 of im40,mbw,mstorm if youve been only focusing on them.