Each Edge of Eternities Collector Booster box contains 12 Collector Boosters, each of which contains the following:

• 15 Magic: The Gathering cards
  • 5 Traditional foil commons
    • There are 81 commons from Edge of Eternities that can be found in these slots.
  • 4 Traditional foil uncommons
    • There are 100 uncommons from Edge of Eternities that can be found in these slots.
  • 1 Traditional foil (66.6%) or galaxy foil (33.3%) celestial basic land
  • 1 Traditional foil default frame rare (86%) or mythic rare (14%) card
  • 1 Non-foil card from Edge of Eternities Commander
    • 4 Mythic rare borderless cards (9%)
    • 20 Rare extended-art cards (91%)
  • 1 Non-foil Booster Fun card
    • A rare (47%) or mythic rare (5%) extended-art card from the Edge of Eternities main set
    • A rare (7%) or mythic rare (4%) borderless viewport land
    • A rare (17%) or mythic rare (3%) borderless triumphant card
    • A rare (15%) or mythic rare (2%) borderless surreal space card
  • 1 Stellar Sights land
    • A non-foil rare (36%) or mythic rare (9%) Stellar Sights land
    • A non-foil rare (18%) or mythic rare (4%) poster Stellar Sights land
    • A traditional foil rare (12%) or mythic rare (3%) Stellar Sights land
    • A traditional foil rare (6%) or mythic rare (1.5%) poster Stellar Sights land
    • A galaxy foil rare (6%) or mythic rare (1.5%) Stellar Sights land
    • A galaxy foil rare (3%) or mythic rare (less than 1%) poster Stellar Sights land
  • 1 Foil Booster Fun card
    • A traditional foil rare (38%) or mythic rare (4%) extended-art card from the Edge of Eternities main set
    • A traditional foil rare (6%) or mythic rare (3%) borderless viewport land
    • A traditional foil rare (13%) or mythic rare (2%) borderless triumphant card
    • A traditional foil rare (12%) or mythic rare (2%) borderless surreal space card
    • A traditional foil Special Guests card (6%)
    • A traditional foil (9%) or fracture foil (1%) Japan Showcase card
      • All Japan Showcase cards will always appear in Japanese in Japanese Collector Boosters. For all other Collector Boosters, these cards appear in English two thirds of the time and Japanese one third of the time.
    • A galaxy foil rare (2%) or mythic rare (1%) borderless viewport land
    • A textless singularity foil Sothera, the Supervoid appears in less than 1% of Collector Boosters
  • 1 Art card or traditional foil double-sided token
    • A traditional foil double-sided token appears in 65% of Collector Boosters.
    • 1 of 54 Art cards appears in 30% of Collector Boosters. An additional 5% of Collector Boosters feature art cards with a gold-stamped artist signature or Planeswalker symbol.