Pack dict is how the game reads and sets up a booster pack. It is located in the game .json file. Here is the breakdown, so you can submit a pack to be included in the game, or create a custom one:
The packs that can be included in the game:
- OCG/TCG;
- Duel Links;
- GX Tag Force 1.
The packs that will be included in the future versions:
- Master Duel;