I love this game! As others have stated, it is pay to win, but only for the tournaments. You can easily level up without paying a penny, I reached level 48 before I bought any packs, and that was bc I was impatient. The higher your level, the more rolls you get per hour. For new players, save your gems, you'll need them to buy monuments that will help you advance or trade for rolls. Also you can watch ads for rolls, not many, mb 3-6 rolls each.