This game is so unbalanced it's actually insane. Took me 3 days to get out of arena one purely because my opponents all have cards that are way out of my level. It's not even a strategy game because you can't use a strategy when you are completely overpowered by cards! Why can't you make it so that when you reach a new arena you get that amount of set cards for the arena instead of having to reach a certain number of trophies if you want one card! It's just pure luck not skill.