Each booster pack contains 15 cards.

Oath of the Gatewatch contains 184 cards (70 Common, 60 Uncommon, 42 Rare, 12 Mythic) but only 183 functionally different cards. However, because of the full-art and regular versions of the Wastes (twice), collectors view this as an 186-card set. Small sets are now enlarged to facilitate the new draft structure (2 boosters of the second set / 1 of the first set).The set includes randomly inserted premium versions of all cards. The expansion symbol of the set seems to be a stylized representation of Kozilek's brood, but it also has similarities with hedrons, usually for Zendikar sets. The set features two Planeswalker cards Chandra, Flamecaller and Nissa, Voice of Zendikar.

Oath of the Gatewatch is all about teamwork. It was designed to support Two-Headed Giant better than any other set in Magic history at the time.The name Fall of the Eldrazi was considered for Oath of the Gatewatch.