I've had this game a long while and I struggle to go up due to lack of rewards 😕 as for sets I spend 30 billion on chests at 60 million a time so that's a lot of chests for one normal card that's new only set ive completed in a year was because a joker in a card box I brought which I dislike doing due to prices and barely any spins with I really think u need to work on this as many people are giving up on the game including myself because I can't go no further have to constantly wait 10 hours