A little while ago, I switched over to my X version. I decided to go searching for some Mega Since since I didn't have that many of them on my X. So, I went all over the region and explored several areas that I knew contained stones. I ended up finding most of the Mega Stones I didn't have. When I was done with my search, I attached the X exclusive Mega Stones I found to some Pokemon in my PC and then traded them over to my Y.