Please slow down level increases, every other month would be much better than every month. It is hard enough just to focus on a core 15 and keep them upgraded, let alone any new heroes with how quickly they are released. It’s costing more and more to update a single hero’s 4 skills one level, yet gold and hp are a constant struggle and that’s someone who spends money monthly. The grind for badges is also becoming tough.
Contest prizes - please make these more rewarding. Using the same hero for over a month of contests is not exciting anyone. More gold and badge prizes would be nice to see.
Also catch up challenges, its great that they are available to everyone all the time but why don’t we get rewarded for reaching the level cap Initially? Would be a nice reward for all those paying money to get there first.