Faeria needs constant improvement (kaizen). If there is no process, there is no development. Developer can not afford to ignore innovations in a highly competitive CCG market. But there are a lot of different opinions about how to balance the game. IMHO a good idea to make a test server. Then we can try different cards buffs or nerfs, an improved mulligan, etc. You may want to give access to the server to different teams for conducting competitions with changes in the game. I think the community will happily conduct such tests and give a qualitative feedback.