In the 9.1.0 version of Pixelmon Reforged, the TCG Trader has an error in the default trades. This datapack changes the TCG Shop structures so new generated villages will feature my alternative trader entity, or if you have access to the /give commands you can use /function alternative_tcg_trader:spawnegg to easily place the entity in your own build.
The trader accepts any 100% filled essence jar of any colour in exchange for a TCG Trader Token, these tokens can be exchanged 1-to-1 for booster packs, an empty deck, locked premade decks, coins or card back cosmetics.
Note: This is only intended as a temporary alternative until the mod updates to fix the original trades. If you want to change the trades you can do so yourself by editing "data\alternative_tcg_trader\functions\spawnegg.mcfunction" and then running the function to give yourself the changed spawn egg - the structures however will remain as they are.