The Pokémon Company recently revealed another special distribution for Pokémon Sword and Shield players. The Galarica Wreath item was initially scheduled to be distributed via a special shared serial code that was supposed to be shown during the Korean Crown Tournament Finals livestream on December 19 and December 20. However, this tournament was postponed due to COVID-19 and is now being held on February 6, 2021. The stream is available in Korean, but all Pokémon Sword and Shield players can now use the Mystery Gift code CR0WNF1NALS to get a Galarica Wreath in Pokémon Sword and Shield until tomorrow, February 7, at 14:59 UTC.
Source: Pokémon Korea