Diablo Wiki
For information on the titular monster, see Ancient Nightmare.
Nightmare Event

Ancient Nightmare event icon

The Ancient Nightmare is a world boss event in Diablo Immortal. It is the Zone Trial of Mount Zavain, and holds on Wednesdays and Fridays at 12:00pm, 8:30pm and 10:00pm (server time); in the Misty Valley. It is only available on Hell difficulties and above.

In-game[]

Reinforcing Mists

The reborn Ancient Nightmare, prowling the Misty Valley

At any point the player is in Mount Zavain, a countdown to the arrival of the Ancient Nightmare is shown in the notification panel. At the end of the countdown, players gather at the Misty Valley waypoint.

Unlike other world bosses, the Ancient Nightmare actively patrols the Misty Valley. Players have to follow it, even as they attack it. It is surrounded by a powerful shield which must be destroyed before it can be injured. Note that numerous nightmares are drawn to its location. Be careful not to stay close to the Nightmare for long as the Black Mists it releases with each step saps health. The mists deactivate as long as the Nightmare remains in range of an active altar, or its shield is depleted.

To deplete the shield and stun the Nightmare, activate Horadric Altars using Zakarum Sigils whenever the Ancient Nightmare is within range of the altar. The Ancient Nightmare only attacks once its shield is destroyed.

Completing this event for the first time earns the player Nilfur's Precision.

Combat[]

The main difficulty in killing the Ancient Nightmare is to destroy its shield. Its attacks are powerful, but slow and easy to evade.

  • Swipe: The basic attack of the Nightmare. It swipes down at players with both hands.
  • Bone Spikes: The Ancient Nightmare stomps on the ground, creating massive Bone Spikes that both damages and knocks the player back.
  • Tornado: The Ancient Nightmare raises it's hands, sending multiple tornadoes in different directions.
  • Puddles: The Ancient Nightmare vomits liquid shadow, forming three persisting puddles of shadow for each attack. The puddles remain till the end of the event. There is no limit to the amount of puddles that can exist at a time. They deal light but fast damage to any player who stands on them, and can stack if different puddles overlap each other.
  • Summon Nightmares: Black Mists form at the Ancient Nightmare's feet, birthing different nightmares.
  • Waller: Though seldomly used, the Ancient Nightmare has the waller trait.

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