During the official Pokémon Sword and Shield - Pokemon Korea Champion Invitational Broadcast (포켓몬스터소드・실드 포켓몬 대한민국 챔피언 초청전 생중계) which was broadcast on YouTube on September 5th, 2020, a serial code to get a King’s Rock in Pokémon Sword and Shield was announced. The code is: K2020CHAMP10NS and it redeemable from September 5th, 2020 until September 6th, 2020 at 23:59. The code can be used worldwide to all players of Pokémon Sword and Shield.



Details about the Mewtwo Strikes Back Evolution (극장판 포켓몬스터 뮤츠의 역습 EVOLUTION) event Pokémon distributions were also announced during the stream. The movie which premieres in South Korea on September 30th, 2020 will have 2 serial codes. Players of Pokémon Let's Go, Pikachu! and Let's, Go, Eevee! can get a level 70 Mewtwo that knows the moves Psychic, Shadow Ball, Barrier and Calm Mind. Ash’s Charizard, which is level 50, will be available to players of Pokémon Sword and Shield and knows the moves Flamethrower, Dragon Tail, Slash and Seismic Toss.



An Ancient Mew TCG card as well as a Armored Mewtwo card will also be distributed to promote the movie.

YouTube Clip - Pokémon Korea Champion Invitational 2020 Broadcast Trailer

Source: https://www.youtube.com/watch?v=ks7q3NvHsmc