I have had this game since it came out. I play almost an hour everyday. It is a free app but there are optional in app purchases. I have never paid anything and have no legendary cards to show for it. The game tells you it is random and can receive these legendary cards randomly. Some people have them all. The only people I know of that have legendary cards have paid for in app purchases. Supercell doesn’t care about their customers, just money. I will be deleting the app after being a long time player.