Just when I thought they couldn't go any lower, they dropped the drop rate for stamina, in that chest. I use to always grab stamina from that chest because it had pretty good drop rates (comparable to the other chests). Used some diamonds for that chest today just to receive horrible drop rates for stamina (10-15 per opening). Gree is really different from a lot of other game developers, for mobile gaming. Doesn't definitely seem like a customer-first based company.