multiple problems... first the game is unstable and so crashes frequently even in the mid game second matchmaking really sucks like level 6 me versus level 16 opponent third too many ads fourth season points or trophies you can earn is unpredictable fifth linking old account with the current game will override old account, yes you read it correct (it happened twice to me) good points: rewards aren't great but finds some good cards in free crates some times matchmaking works properly