Holy hell why can't i find any god damn mega stones? for the past week i've been going to the cyllage gym for aggronite and the frost cavern for scizorite at the frost cavern in between 8 and 9 and have not seen the stupid fucking purple sparkle or what the fuck ever.

has anyone had the same problem? before you ask i beat my rival after doing the 1 battle at maison, and talked to the prof at anistar. he said my ring was upgraded but i blew through the text quickly was there something else i needed to do afterwards?