From Bulbanews, your community Pokémon newspaper.
Available for X, Y, Omega Ruby, Alpha Sapphire
Codes for Shiny Xerneas and Shiny Yveltal will be available at Smyths stores in the United Kingdom.
Codes for Shiny Xerneas can be obtained from July 19 to August 16, 2016. Codes for Shiny Yveltal can be obtained from August 17 to September 15, 2016.
The codes can be redeemed in Pokémon X, Y, Omega Ruby, or Alpha Sapphire. Each code can only be redeemed once.
Both Pokémon will be level 100 and have no held item. Xerneas knows the moves Geomancy, Moonblast, Aromatherapy and Focus Blast. Yveltal knows the moves Oblivion Wing, Sucker Punch, Dark Pulse and Foul Play.
Codes for these two Pokémon have previously been available in a number of European countries, with codes for Xerneas being available in the UK previously at Hyper Japan. Xerneas codes have previously been available in Denmark, Finland, Norway, Sweden, Russia, Poland, Portugal, and France. Yveltal codes have previously been available in Spain, Denmark, Sweden, Russia, Poland, Portugal, and France.
Similar Xerneas and Yveltal were available for American region games via Nintendo Network.