Necromancy

Necromancy is a practice involving the use of paracausal abilities to resurrect the dead. It is considered by Oryx's Hive to be a violation of The Sword Logic, and therefore forbidden; however, it has been employed by the heretical Hive Prince Nokris, who was taught the secrets of necromancy by the Worm God Xol. Xol himself used necromancy to resurrect several individuals of various races who had been slain by the Guardians, including Valus Ta'aurc, Drevis, Wolf Baroness, and Urzok, the Hated, before Taking them and converting them into Ta'aurc, Aspect of War, Drevis, Aspect of Darkness, and Urzok, Aspect of Hate respectively. Many of Savathûn's Hive have the title "Revenant" attached to their names, suggesting that Savathûn and her subordinates also employ necromancy.

The Scorn are a faction of undead Fallen reanimated by Fikrul, the Fanatic using Dark Ether. This method differs from Nokris' necromancy, as the revived Fallen are infused with Dark Ether and undergo drastic physical changes coupled with mental degradation. In contrast, the Hive resurrected by Nokris seem to be fully reconstituted and identical to their former selves.

In the years following the Red War, a scarlet fortress appeared on the Moon, inhabited by Nightmares of powerful foes previously slain by the Guardians. Little is known about the origins of the Phantasms, but the Hive construction of the fortress suggests they may have been resurrected in a similar manner as Nokris' necromancy.

The resurrection of Guardians by their Ghosts, although typically not referred to as such, may technically also be considered a form of necromancy.

Trivia

 * Many of this Hive faction's units have "Revenant" as a rank title; this suggests that these individuals have returned from death, either by virtue of being Ascendant or through the heretical practice of necromancy (as employed by Nokris, Herald of Xol).
 * Although the latter theory is render dead since Savathûn is currently learning from her nephew.

List of appearances

 * Destiny 2: Warmind