I have grinded (ground?) For years and never spent a dime. I don't copy online forum recipes and attempt to fashion my own. I do find that at a certain point you need to collect the entire set of a certain class plus a few others, but isn't that the point? You will need legendary and epic cards to compete in the higher rankings, but isn't that the point? 12/7/21 They have been adding so many new modes and stupid diamond cards and stupid rpg stuff... its just... its sad to say... it sucks now