I rarely leave reviews, but with this game it's neccassery. I think it's rigged. You level up in increments of 50 xp, and when you are close to levelling, suddenly you are facing harder opponents. I win 9/10 games, and then when I am close to levelling up, on my 10th game I lose about 7 games in a row, resulting in xp loss, and constant cycle of winning and losing until the 'game' is satisfied I have grinded enough. Then I can level up. Hard to explain, but basically it's rigged. Pay to win.