A new Pokemon is waiting to get into your game this week. Diancie, a Legendary Pokemon previously distributed by GameStop flyers for Pokemon X and Y , is going to appear in Pokemon Omega Ruby and Alpha Sapphire this week.
Between July 24-27, 2015, Diancie will be sent out over the internet via Mystery Gift to anyone with either of the most recent Pokemon 3DS games. All you have to do to download it is connect to the internet. You’ll then be able to pick the Diancie up at a Pokemon Center in-game.
Here’s a trailer, exactly explaining how this Pokemon Diancie distribution works.
Don’t forget to add Diancie to your party temporarily and heading inside a Pokemon Center after getting it. That way, you’ll get a Diancite Mega Stone for it.