On Wednesday, April 25, 2018, the official Pokémon Center will celebrate its 20th anniversary! To commemorate this event, The Pokémon Company is planning to host a huge event from April 25 to June 30 at Pokémon Centers and Pokémon Store locations throughout Japan. A slew of engaging activities will be available for fans, including exclusive giveaways, battle events, meet-and-greet sessions, as well as distributions for Pokémon Ultra Sun & Ultra Moon and Pokémon Sun & Moon. One such distribution is Shaymin, which will be available for download via Pokémon Centers and Pokémon Stores throughout Japan from April 25 to June 30. To learn more about this massive anniversary event, click here.
Source: The Pokémon Company