Coming back after a long break

Hi everyone! After being away from the game for a few years, I'd like to get back into Marvel Snap.

I've noticed that a ton of new cards have been released. The last time I played was around the Deadpool Chimichanga event (I don't remember which season that was).

As you can imagine, I'm missing a lot of Series 4 and 5 cards. I currently have 15k Tokens and 4k Gold.

Which cards would you say are absolute must-haves to catch up with the current meta?