To get the Legacy Oath armor set in Destiny 2, you must participate in the Deep Stone Crypt Raid. This armor set is distributed across different encounters within the raid. Specifically, the armor pieces drop from various stages: the arms, legs, and class item can be obtained from both the first encounter, Crypt Security, and the second encounter, Atraks-1. The chest, additional arms, and class item drop from the third encounter, Rapture. Finally, the head, chest, and legs are awarded in the final encounter, The Abomination. Each encounter provides a piece of the armor set, necessitating completion of most, if not all, parts of the raid to collect the entire set. This raid is noted for being more accessible compared to others, offering players both a challenge and valuable rewards like the Legacy Oath armor​.