Each factory-sealed display box contains 12 Dominaria United Collector Booster Packs!

Dominaria United Collector Booster Packs are a shortcut to the most precious cards in Dominaria United — open a pack and fill your binder with rares, foils, special art, and showcase frames. Collector Boosters are the only Dominaria United boosters that contain Extended Art cards.

Additionally Dominaria United Collector Booster packs have a chance to contain a card from the original 1994 Legends magic set! For more details, read this article from Wizards of the Coast. 

Collector Booster breakdown:

• 1 Textured foil showcase uncommon, rare, or mythic
• 2 Foil etched Legends Retold and/or non-foil Legends Retold, showcase, Phyrexian, and/or borderless rares or mythics
• 1 Foil etched or non-foil Legends Retold uncommon
• 1 Foil showcase, borderless, Phyrexian, or extended art rare or mythic
• 1 Foil showcase "legendary" creature uncommon
• 1 Non-foil extended art rare or mythic
• 1 Foil rare or mythic
• 2 Foil uncommons
• 4 Foil commons
• 1 Foil full art basic land
• 1 Foil double-sided token