They make it impossible to get bonus cards. They just want you to buy them. Makes for a boring game when someone your playing has 20 because they bought them and you have 3. They also let you make purchases for events that are already over. And there is way way too many ads. You need to get common, rare, or epic bags to collect cards for story events and all you get are duplicates and you get gems to buy cards but always get cards that are also duplicates so you can't even buy what you need