I have 2 4* purple, blue, green and 1 4* yellow and red. So far I have been levelling 1 of each 4* for every color. Is it better to first max 1 of each and then do the others, or should I try to focus also on the rest of the troops? I know having more than 1 levelled troops is better for color stacking but is it worth? It surely slows down a lot the levelling and I would like to have powerful troops for my main team (which is rainbow).
What is your strategy? (sorry if the question has been asked, I tried to browse a few posts but I couldn’t find an answer to my question)