Rayquaza Shiny Galileo

This Shiny Rayquaza was distributed to players who inserted a serial code that was given away at various locations in select countries. In Australia and New Zealand, the serial codes were given away at participating EB Games stores from August 10 to 31, 2015. In the United Kingdom, the serial codes were given away at participating Smyths Toys Superstores from August 24 to September 20, 2015. In Germany, the serial codes were given away at participating Müller stores from August 31 to September 28, 2015. In France, the serial codes were given away at Paris Games Week from October 28 to November 1, 2015. The serial codes could be used to obtain Rayquaza from August 10, 2015 to January 27, 2016. It was distributed to promote the release of the Shiny Rayquaza-EX Box and the Ancient Origins Pokémon Trading Card Game expansion.

Rayquaza (Japanese: レックウザ Rayquaza) is a dual-type Dragon/Flying Legendary Pokémon.

It is not known to evolve into or from any other Pokémon. It can Mega Evolve into Mega Rayquaza if it knows Dragon Ascent. 

Rayquaza is the version mascot of Pokémon Emerald, appearing on the boxart of the game. It serves to end the conflict between Kyogre and Groudonwhen Team Magma's leader Maxie and Team Aqua's leader Archie awakened them.

Along with Kyogre and Groudon, Rayquaza is a part of the weather trio, serving as its trio master.