Should I work on another character? (in General)

The one that has played the purpose of my main has kind of hit its current pinnacle and I can't really retrain anything, lest my main damage dealer become insufficient. I have another 3 minion team that I feel may have promise to it. Should I focus on that one instead, or just keep up with my main?

I wish I had some advice. I'm endlessly experimenting and have no good idea what to do myself most of the time

It depends what your goals are.

(1) You want to have one of the top characters in CB

You should continue to play your main character until the end of your NUB. Spend as little CBD as possible while doing so.

Once your NUB is over, start a NCB and use the CBD you accumulated with your NUB to pay for the extra BA.


(2) Score is not that important and you just want to build a character that you really like and play it long term

Then you should start the new character now while you still have the NUB which allows you to re-adjust your character when required without suffering too much penalty.