"Oath of the Gatewatch" is a set of trading cards released for the Magic: The Gathering game in January 2016. It is part of the Battle for Zendikar block and features a storyline centered around the Gatewatch, a group of powerful planeswalkers who unite to combat the threat of the Eldrazi. The expansion includes 184 cards and introduces new mechanics, such as Awaken and Support. It emphasizes teamwork and collaboration among planeswalkers, showcasing their efforts to protect the multiverse from dangerous forces. The set also features iconic characters like Jace Beleren and Chandra Nalaar.