This gift was given to players through the serial code DARKTERA0006, revealed by the Pokémon TCG TC Taiwanese YouTube Channel, to promote the Ruler of the Black Flame TCG expansion.
Format Ver.3.0.1-5, Post Updated Date:20230721_2109
What can be done with these files
PKM creation with PKHeX (drag & drop the wondercard file in the spot where you want the Pokémon)
In-Game Mystery Gift redemption with Switch Gift Data Manager