Each Set Booster contains 12 Magic cards, 1 Art Card, and 1 token, ad card, counter punchout card, or special card from Magic's history (a card from "The List"). Each pack contains a combination of 1-4 card(s) of rarity Rare or higher and 3-7 Uncommon, 3-7 Common, and 1 Land cards. One non-Art Card and non-Land card of any rarity is foil.
The Land card is foil in 21% of packs, and a foil-stamped Signature Art Card replaces the Art Card in 5% of Set Boosters. A card from The List replaces the token or ad card in 25% of Set Boosters.