A ONE Set Booster includes a combination of 1–4 card(s) with a rarity of rare or higher and 3–7 uncommons, 3–7 commons, and 1 basic land. A traditional foil basic land replaces the basic land in 20% of Set Boosters, and a foil-stamped signature art card replaces the art card in 10% of ONE Set Boosters. (A traditional foil borderless mythic rare planeswalker can be found in less than 1% of ONE Set Boosters.)

ONE Set Boosters contain either a panorama full-art basic land or Phyrexianized full-art basic land.

Each Phyrexia :ONE Set booster contaions 12 Magic cards, one art card, and one token/ad card or a card from The List (a special card selected from Magic's history or "Universes Within" card—found in 25% of boosters). 

1x art card

1x Showcase Ichor  Common / Uncommon

1x Main Set Rare / Mythic

1x Traditional foil c/u/r/m

2x Wildcard c/u/r/m

3x Uncommon

3x Common

1x Panoram or Phyrexianized Basic Land

1x Token or ad card or card from The List.