Is trading the only way to get the MegaStones not available in my game?
I have Pokemon Y and I've collected all the mega stones but I am missing the X exclusives:
- Charizardite X
- Tyranitarite
- Manectite
- Pinsirite
- Mewtwonite X
and the ORAS exclusives (if you can even get them in X/Y):
- Beedrillite
- Pidgeotite
- Slowbroite
- Steelixite
- Glalieite
- Sceptilite
- Blazikinite
- Swampertite
- Sableyeite
- Altariatite
- Sharpedoite
- Camerupite
- Salamencite
- Metagrossite
- Latiosite
- Latiasite
- Lopunnyite
- Galladite
- Audinite
- Diancieite
Yes, the only way to get megastones not available in your game is through trading.