Nightmare of Navôta

The Nightmare of Navôta, Eir-Spawn is the featured Tier 3 boss of Nightmare Containment, a public event in the Castellum aboard the Derelict Leviathan introduced in Season of the Haunted. It is the Nightmare of Navôta, a disgraced Hive Wizard who tried to unite the Hive broods in the Cosmodrome.

The fight follows the Wizard pattern. After losing a third of its health it becomes immune and summons two Dread Bearer Raiders. Killing both and depositing the Cores of Dread at the Nightmare Harvester makes the boss damageable again and provides Scythes, and this repeats after each further third of its health. The boss appears roughly every three weeks.