Strategy for Souls?
I'm mid game. Trying to figure out a strategy for souls. What does everyone do with them? Keep them all? Sell all 1 and 2 stars? Are 4, 5 and 6 star soul automatic upgrades regardless of who the champion is and their rarity? I keep all lego ones. I sell most rare ones except for my secret room specialists. I have several 3 and 4 stars for epics, but none are really top tier epic champions. So not really sure what to do with those. Any suggestions or links to a good video are appreciated.