Special Packs are limited-time Card Packs available in the Shoppe, each centered around a specific theme. These packs offer the possibility of obtaining a rare Onyx variant and Onyx Fragments.
When buying Special Packs, you can receive a limited number of each card in the card pool for that set. Once you reach the maximum number of a card for that set, you won’t receive it again. If you complete a set by purchasing enough Special Packs, a new set will become available, allowing you to try for the cards in the new pool until you reach the maximum number for that set.