This Zarude and a Celebi were released in commemoration of Pokémon the Movie: Secrets of the Jungle in US and EU. To get the event codes, users had to sign up the TPCi newsletter before September 25, 2021. The codes were sent to users on October 7, 2021.
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.2.1.2-9, Post Updated Date:20211014_1111