http://www.newsweek.com/pokemon-ultra-sun-moon-zeraora-event-distribution-how-1147073

Trainers outside Japan have waited patiently for their chance to get Mythical Pokémon Zeraora, and The Pokémon Company announced the distribution event for the Electric-type Pokémon will begin in October.

To celebrate the Nov. 2 release of Lost Thunder, the latest expansion of the Pokémon Trading Card Game, serial codes will be distributed in participating GameStops from Oct. 19 to Nov. 9.