MTG: Phyrexia: All Will Be One Set Booster
Each Set Booster contains 12 Magic cards, 1 Art Card, and 1 token/ad card or card from “The List” (a special card from Magic's history or Universes Within card—found in 25% of packs).
Every pack includes a combination of 1–4 card(s) of rarity Rare or higher and 3–7 Uncommon, 3–7 Common, and 1 Land cards. A Traditional Foil Land replaces the basic land in 20% of Set Boosters and a Foil-Stamped Signature Art Card replaces the Art Card in 10% of Set Boosters. A Traditional Foil Borderless Mythic Rare Planeswalker can be found in <1% of boosters.