Spent at least 480 stamina last week, and 320 just now tonight, but haven't gotten a single level 100 blue bloom dragon. Before these past 2 weeks, I don't remember having this happen before. Is this just bad luck or is this happening to other people? I haven't tried other colored dragons, since I have plenty of them from the previous events. I'm going to use a Flower Gem to restore stamina and try again.