This event has been made available with the code 21JAPANCHAMP10N, announced during the Pokémon Japan Championship stream. The Pokémon is based on the Kohei Fujida's Sableye.
As of LGPE, wonder cards are no longer stored in saves. As such, players will not be able to inject this event into their save using PKHeX.
Format Ver.2.1.2-12, Post Updated Date:20220611_1557