So far after completing Pokemon X I've just been training up my Pokemon team and trying to complete
the Pokedex by trading Pokemon. However, i haven't had much luck trying to get Mew as whenever i try finding it in the GTS, it doesn't come up which isn't too helpful. I'm not sure if Mew's possible to get in the game (as i do know you can get Mewtwo pretty easily) but if anyone has any way to get Mew at all please do tell me as it's my favorite Pokemon and I'd love to have it in my game. 
Some pretty interesting things also happen after the game so if you're stuck on things to do you, here's some of my favorites:
.Catch either Zapdos, Articuno or Moltres (depending on your starter)
.Battle Calem in Kiloude City who will tell you to go to Anistar city and the professor will tell you more about the mega ring
.Catch Zygarde in Terminous cave
. Get a mission from Looker
. Collect the Eevee evolutions!
Have fun!
the Pokedex by trading Pokemon. However, i haven't had much luck trying to get Mew as whenever i try finding it in the GTS, it doesn't come up which isn't too helpful. I'm not sure if Mew's possible to get in the game (as i do know you can get Mewtwo pretty easily) but if anyone has any way to get Mew at all please do tell me as it's my favorite Pokemon and I'd love to have it in my game. Some pretty interesting things also happen after the game so if you're stuck on things to do you, here's some of my favorites:
.Catch either Zapdos, Articuno or Moltres (depending on your starter)
.Battle Calem in Kiloude City who will tell you to go to Anistar city and the professor will tell you more about the mega ring
.Catch Zygarde in Terminous cave
. Get a mission from Looker
. Collect the Eevee evolutions!
Have fun!