From now until July 27, 2015, add the Mythical Pokémon Diancie to your game via a Nintendo Network distribution event!
For a limited time, you can get the Mythical Pokémon Diancie for your Pokémon Omega Ruby or Pokémon Alpha Sapphire game! Diancie will be available via a Nintendo Network distribution July 24–27, 2015. This Diancie is as talented as it is elegant, appearing with a collection of moves that make it ready for battle. And be sure to look for the Diancite Mega Stone, the item that will allow Diancie to Mega Evolve, in your Pokémon Omega Ruby or Pokémon Alpha Sapphire game!
You don’t even need to go to GameStop to get a code, you can just download it straight offline, it doesn’t get easy. So all you pokemon fans better get this download only pokemon while you still can. The odd thing is that I already got two Diancies last fall so this isn’t the first time in the last year they have given it away.