Start/End Dates	2015-08-12 through 2015-09-14
Country	United States

Details

To celebrate the launch of the latest English TCG expansion set XY Ancient Origins, players of Pokémon Omega Ruby or Pokémon Alpha Sapphire where be able to receive a Shiny Rayquaza from August 12th, 2015 until September 14th, 2015.

Get Shiny Rayquaza with Dragon Ascent

Soar into battle with Shiny Rayquaza, available via the Nintendo Network! This Shiny Rayquaza is not only rare, it is also amazingly powerful. Shiny Rayquaza knows the Dragon Ascent move, which allows it to Mega Evolve. When it does, Shiny Rayquaza will dominate its opponents!

Don’t miss this chance to get Shiny Rayquaza for your Pokémon Omega Ruby or Pokémon Alpha Sapphire video game!

A legacy of Shiny Pokémon

Shiny Pokémon have existed in Pokémon video games all the way back to Pokémon Gold and Pokémon Silver, and they continue to be a mysterious part of Pokémon games today. Discovering a Shiny Pokémon in the wild is an extremely rare event—an occurrence that Pokémon Trainers never forget!

Shiny Pokémon have also been woven into key moments during a Trainer's adventure. Take a look at some of the amazing Shiny Pokémon that have appeared in Pokémon video game history.

Source: http://xy7.pokemontcgxy.com/en-us/videogame.php