Mission Description
Regicide is a story mission that comes along the end of the Taken King campaign. In it you use the shard that you stole from Crota's soul during the mission Last Rites. You past through a portal as an ascendant Hive. From there you pass on to the Asylum, fight Baxx, the Gravekeeper and Primus Ta'aun, then proceed to the boss fight where you fight Oryx. Several Calcified Fragments can be found during the mission.