From Saturday, March 31, 2018 to Sunday, April 1, 2018 competitors and visitors of the 2017-2018 Korean Spring League are able to receive a shiny Poipole! Bring your Nintendo 3DS and your copy of either Pokémon Ultra Sun or Ultra Moon (updated to version 1.2) from 12PM to 5PM KST to the Culture Hall of the Pyeongchon branch of the Lotte Department Store which is located in the Dongan-gu district of Anyang, South Korea.
You're going to receive a shiny Poipole that knows the attacks, Venom Drench, Nasty Plot, Poison Jab and Dragon Pulse. So Trainers don't miss this opportunity to obtain a special shiny Pokémon!
As of Thursday, January 18th 2018, The Pokémon Company International declared 2018 to be the “Year of the Legendary Pokémon”. This means that there will be various distributions of legendary Pokémon throughout the year.
The Pokémon that get distributed aren't mythical Pokémon, but luckily 2017 was the 20th anniversary. In celebrating the occasion, they distributed mythical Pokémon throughout the year. This year they chose for a similar scheme, but the legendary Pokémon you receive depends on your game. (e.g. Ultra Sun or Ultra Moon) Additionally, this marks the first time that Shiny Zygarde is being officially recognized by TPCi, and to be slated for release in June.
Pokémon distribution schedule:
Sun/Ultra Sun: Palkia
Moon/Ultra Moon: Dialga
Some of them come with a gold bottle cap. They are at least level 60, and know "awesome moves", according to TPCi.