My complaint:
I love this game but it’s almost impossible to complete any set of cards. I’ve moved up so many levels and have opened countless amounts of chests to never receive any new cards or gold cards. The game creators need to do something about this because it’s really annoying. In any game you want to be able to complete it entirely but when it’s this difficult it’s making me lose interest.
Suggested solution:
I would like it to be easier to receive new cards so that you can get extra bonuses along the way.