Help with progression

Need help with what units to really focus on for long term game play and maybe what units I should look to try and pull but mostly just Wana know how I can progress with the teams I have for late game stuff

This is currently the team I’m pretty much using

Jasmine & Karen
Jasmine is one of the best physical tank.
Karen is the only dark special striker afaik.

Also Rosa’s Serperior is a good tank.
You’ll want more than one tank for late game stuff

Either way, you should raise all of those in thr end.
Having variety of unit is never a bad thing