I love how so many people in here are crying about how the game is pay to win. Seriously, there is no need to pay a single dollar in this game. They practically throw money and gold at you. You just need to know what mode to play. If you are good at tandems, you can win gold endlessly. Fact of the matter is that you need skill to progress in this game. There are also events every 3 days in which the free loot is around 50 gold on average apart from loot boxes and cash. Skill is all that matters