Each promo pack is a special three-card booster:
Common Promos: These include Hyperspace variants of starter cards (like R2-D2 and I Am Your Father) or select cards with a special OP frame (such as Waylay and Battlefield Marine).
Rare Promos: These are alternate-art versions of select cards from the set, including characters like Greedo, Yoda, and Resupply. Approximately one in three rare promos also features a special foil treatment, making them even more collectible.