I did some research and some testing and concluded that to fully upgrade something costs about 2m. So everything all together costs about 42m. Now my question is why does everything have to be so expensive? Why don't we have a good way to make money for non buyers? And why is this game so pay to win? Please do something to make non buyers happy too.

Does everyone have a chance to join the event or is it just a specified group? And are we going to have any different events this week?

I have seen many people do this and get tones of crystals, so now I want to know how I can do it myself. Pretty much my question is "How do you use the invite feature in the friends list?"