This event has been made available with the code V1CT0RYENG1NE25, announced during the Pokémon Players Cup Invitational stream. The Pokémon is based on the Wolfe Glick's Coalossal.
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.2.1.0-1b, Post Updated Date:20210814_1855