Diablo Immortal’s Ancient Nightmare event tasks players with dispatching a world boss, and it is active every Wednesday and Friday at 12pm, 8:30pm, and 10pm server time. While the Ancient Nightmare is not particularly difficult to dispatch in a group, its mechanics may seem a bit convoluted upon first glance. This guide is here to resolve any confusion that might be surrounding the Ancient Nightmare event inDiablo Immortaland help players bring down the relevant boss.

Diablo Immortal: Ancient Nightmare Guide

Upon arriving inMount Zavainat one of the aforementioned times, players should see that the Ancient Nightmare has arrived, and they can useDiablo Immortal’s auto navigationfeature to reach it. Notably, fans that are in the zone when the Ancient Nightmare appear should receive a notification, and clicking on “OK” will automatically put a character in motion toward the boss. Players can also simply look for the Ancient Nightmare in theMisty Valleyif they are having any issues finding it with auto navigation.

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After locating the Ancient Nightmare,Diablo Immortalplayersmust follow the boss, waiting for it to pass by one of theAltarsthat is in the area. When that occurs, fans should interact with the Altar and feed aZakarum Sigilinto it. This action will cause a dome of light to emanate from the Altar, which will temporarily remove the Ancient Nightmare’s shield and allow players to deal some damage to the boss.

As a brief aside, Zakarum Sigils are obtained fromLord Martanos, anotherboss inDiablo Immortalthat appears in Mount Zavain. More specifically, players can spawn Martanos at theMartanos Altarthat is in the crypt at thenorthwest corner of the Zakarum Graveyard, and it is possible to fight him every 30 minutes. While it is certainly not requisite that a player have enough Sigils to cover the entirety of the Ancient Nightmare event by themselves, it may be worthwhile to have a couple in hand before engaging the boss.

diablo immortal ancient nightmare mount zavain

Fans should now simply repeat the process of removing the Ancient Nightmare’s shield and damaging it until the enemy has been slain. On a first kill, players should receive the Nilfur’s Precision Vessel, which can be taken to Iben Fahd’s Sanctum to give aDiablo Immortalcharacterbonus armor penetration. Fans should also gain access to a chest with loot on subsequent kills, giving them some incentive to return to Mount Zavain and participate in the event again.

Diablo Immortalis available on Mobile and PC.

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