To summarize, if you pay for chests then you don't have to grind and get a higher win rate. If you decide not to pay and grind then you'll have a lower win rate because you'll keep losing to higher level units no matter the positioning or strategy of your army. Too bad. I actually had fun but this is just another cash-grab game. P.S. Even the free chests are no help because you have to wait hours to open them. EDIT: Not talking about ranks. I'm talking about win rate. Do the math.