[2021] Coming back to MSF after break

I played hardcore for awhile, can’t remember date I quit but Black Panther & Deadpool were new-ish when I last played.

Basically I’d like to start again, (not really curious on game quality I’ve read a lot of your rage posts I know this is a P2W model, I just like playing marvel characters and have a long commute to work)

So I’m wondering who is meta now and what might have shifted. I’m level 69 and still top 2k in my arena.

Current arena squad is crossbones, captain America, drax, gamora, and quake

Which characters do I really need to go after?

Appreciate any and all advice!