Each The Brothers' War 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 - found in 25% of packs).

Every pack includes a combination of 1 - 5 card(s) of rarity Rare or higher and 3 - 7 Uncommon, 3 - 6 Common, and 1 Land cards. Traditional Foil Land replaces basic land in 20% of Set Boosters. Foil-Stamped Signature Art Card replaces Art Card in 10% of Set Boosters.