Board Thread:Question and Answer/@comment-81.43.167.11-20160725202139/@comment-186.51.154.167-20160725213606

brittle keys r for the current event only, go to menu>items>special items & tap details then u'll see, it says something like -"these keys can b used only for the celestial vacations event-" & yes if u don't use'em they dissappear at the end of it. sturdy keys r the ones u can use whnever u want.