Haven’t picked up a Diancie yet? Well you’ll have the chance to nab one this weekend.
This weekend, between July 24th and 27th boot up your copy of Pokémon Omega Ruby or Pokémon Alpha Sapphire to download Diancie. The Pokemon will also come with a Diancite Mega Stone so you can Mega Evolve her in battle.
As usual you’ll need to go the mystery gift function to download Diancie.
Source: Pokemon
Makes sense to us.
It's Black, Back Again.