needs huge amount of work and it won't become too good. The brightside is that you will get lots of experience from completing this game, developer-ma nan.
After playing it a few weeks and reaching level 38, I am without silver , gold and crystals. To create epic cards I need like 10k or even more, boss battles gave me shitty creatures and some shitty crystals for fusing (fusing sucks). I quit.
Thanks