The game is completely free!! I've already gotten 91 hours on the game and I haven't even had it a full week yet. The solo missions/story mode is really enjoyable to grind and ranked is a little difficult till you get the hang of it. The tutorial goes over everything and there's no issues understanding how the game works. My only issue is how after you play the game for awhile you get less and less gems but thats not too bad of a problem if you play smart instead of wasting them all, aka get 2 mystery packs of 10 then get secret packs and just spam out the mystery pack you wanna build a deck around. There's no boring time on the game and the music is awesome too. 10/10 would recommend.