With the exception of one or two arena events that only require 2 players (which should be increased to a minimum of 4), the other requirements are reasonable.

However, there is an underlying issue that needs to be addressed: the system accounting for 'idle' players, particularly in city events. I've personally observed players acquiring dozens of cases in a single week with little to no effort. All you need to do is log in between Monday and Friday (this is assuming you have no job/school), during the morning or afternoon (before 2-3 PM), and you are guaranteed to earn hundreds of millions, if not billions, in cases.

With this issue in play, features such as the rare items store, auction house, and leaderboards, etc - Are rendered pointless.

With the exception of one or two arena events that only require 2 players (which should be increased to a minimum of 4), the other requirements are reasonable. However, there is an underlying issue that needs to be addressed: the system accounting for 'idle' players, particularly in city events. I've personally observed players acquiring dozens of cases in a single week with little to no effort. All you need to do is log in between Monday and Friday (this is assuming you have no job/school), during the morning or afternoon (before 2-3 PM), and you are guaranteed to earn hundreds of millions, if not billions, in cases. With this issue in play, features such as the rare items store, auction house, and leaderboards, etc - Are rendered pointless.