I find it very demotivational to play this game
Basically, after doing 5 stars on all maps, the only source of chests comes from playing a map with a new hero (and that chest sucks). Why am I not rewarded for replaying a map and getting 5 stars? Could you not add a "random map" button that always reward 2 chests for 5 stars and 1 chest for 3 stars? I get that you shouldn't really be able to spam one specific quick map to grind chests, but this is just demotivational and I feel like I'd rather play something else.