I actually liked the game and have been playing it since the release, but with the last update came a lot of unnecessary stuff, i don't really understand why you have and give free gems if you can't spend them, i would try to understand it if you could still use them after or if you don't have anymore paid gems but you can't even do that. Also why is necessary to divide the groups? Before i could use cards from other groups to upgrade another's ones, now it's just a bad game :/