BossStar Augur Etraeus
Image of Star Augur Etraeus
Gender Male
Race Nightborne (Humanoid)
Level ?? Boss
Reaction Alliance Horde
Occupation Astromancer
Location Eternal Observatory, Nighthold
Status Killable

Star Augur Etraeus is a boss in the Nighthold raid. He is also encountered in the Court of Stars dungeon.

Adventure Guide

The nightborne astromancer Etraeus has devoted long years of research to scouring the skies of Azeroth, seeking answers to the great mysteries of the universe. His scrying has shown him worlds beyond our ken, and the power of the Nightwell allows him to draw upon the essence of those worlds to amplify his own powers.


Star Augur Etraeus fights within a stellar observatory of his own construction. At 90%, 60%, and 30% health remaining, he will activate his observation deck to project the raid through the nether overlooking different worlds, siphoning the energies of those worlds to empower his abilities in different ways.

Damage Dealer Alert Damage Dealers

  • Move away from other players when afflicted by Icy Ejection to avoid damaging them with Shatter.
  • Avoid placing Felflame on other players when afflicted by Fel Ejection.
  • Turn away from Things Which Should Not Be when they cast Witness the Void.

Healer Alert Healers

  • Players affected by Coronal Ejection suffer heavy damage over time.
  • Fel Nova and Witness the Void deal heavy raid damage.
  • Voidburst deals increasing damage over time.
  • Turn away from Things Which Should Not Be when they cast Witness the Void.

Tank Alert Tanks

  • Huddle together with clumps of players to remove Absolute Zero, avoiding players with Chilled.
  • Use Fel Impact to clear pools of Felflame.
  • If a Thing Which Should Not Be is too close to Etraeus, they will both gain Void Shift.
  • Turn away from Things Which Should Not Be when they cast Witness the Void.


Court of Stars

The Burning Legion is entirely focused on the task at hand. They need someone with my vision to guide their future.
So many worlds must be out there, needing to be purged. Who better than me to locate them?
Sargeras himself shall recognize my genius. Will his power expand my mind? Or will my mind expand his power?


If only you knew what lay beyond...
Grand Conjunction
  • As the stars wax, so your lives wane!
  • No mortal may acerbate the pre sets of fate!
  • The stars align! Fear their portents!
Such insolence... very well, I shall show you!
See for yourself the cruel, frozen void that lies beyond the margin of Azeroth's skies!
The stars have judged you, and found you wanting.
The Burning Legion. Slayers of whole worlds.
Could we hope to resist? Can you?!
Is that not enough? Must I show you the true horror of our reality?
Very well... witness what I have seen and TREMBLE!
Avatars of non-existence... knowing nothing but hunger.
These are the beings who will devour the future you so futilely fight to protect!
Thing That Should Not Be
No! I cannot control... the void. It comes!
Killed a player
  • Return to nothing.
  • You can not avoid annihilation.
  • What meager petulance. I expected more from you.
  • Held by the majesty of the stars. You are nothing. Less than nothing.
Do not think... the future will be so easy.
First Arcanist Thalyssra yells: Etraeus thought himself superior to... well, everyone. I confess I enjoyed seeing him humbled.


  • Ability druid starfall.png  Grand Conjunction Important — Marks players with Star Signs. Players with the same star sign who touch each other have their star sign cleared. If a player with a sign touches a player with an opposing sign, a Grand Trine occurs. If a star sign expires without being removed, it also triggers a Grand Trine.
    • Spell arcane arcanetorrent.png  Grand Trine Deadly — Inflicts 1850000 to 2150000 Arcane damage to all players and increases their damage taken by 200% for 2 min.

Stage One: The Dome of Observation

  • Spell nature starfall.png  Starburst — Fires a bolt of stellar matter at the target, inflicting 2310000 to 2680000 Arcane damage.
  • Ability skyreach solar burst.png  Coronal Ejection — Creates an unstable ball of energy that detonates after a short time, sending missiles at nearby players and inflicting 750000 Fire damage immediately and 450000 Fire damage every 2 sec. for 8 sec.

Stage Two: Absolute Zero

  • Spell frost chillingblast.png  Iceburst Tank Alert — Fires a bolt of frost at the target, inflicting 2380000 to 2500000 Frost damage to them and any other players within 6 yards.
  • Ability socererking arcanewrath.png  Gravitational Pull Tank Alert — The targeted player attracts detritus from the nether, and is periodically struck by an impact from the area surrounding the platform.
    • Spell mage cometstorm.png  Comet Impact Tank Alert — Inflicts 4310000 Physical damage to all players within 5 yards of the targeted player, and applies Absolute Zero to the targeted player.
      • Ability mage coldasice.png  Absolute Zero Important — Inflicts 1800000 Frost damage every 2 sec. This effect stacks. This effect can only be removed by standing within 5 yards of at least 3 other players. Players who help remove Absolute Zero are afflicted with Chilled for 12 sec. In Raid Finder difficulty, affected players only need to move within 5 yards of one other player to remove Absolute Zero. Additionally, Chilled is not applied to those players.
      • Ability mage chilledtothebone.png  Chilled Important — When a Chilled player comes within 5 yards of a player with Absolute Zero, the Chilled Player will be Frozen Solid.
        • Spell frost icestorm.png  Frozen Solid Important — Stuns the affected player for 10 sec.
  • Spell hunter icetrap.png  Icy Ejection — Creates a ball of frost that shatters after a short time, inflicting 505000 Frost damage immediately, 300000 Frost damage every 2 sec. for 10 sec, and gradually slowing affected targets over 10 sec until they come to a complete stop, at which point they Shatter.
    • Spell hunter icetrap.png  Shatter — The affected player shatters, causing 832500 to 967500 Frost damage to them and any other players within 8 yards. On Mythic Difficulty, whenever a player shatters, they create an Ice Crystal which periodically causes a Frigid Pulse.
      • Spell deathknight iceboundfortitude.png  Frigid Pulse — Inflicts 1828125 to 1921875 Frost damage to players within 5 yards and stuns them for 1.5 sec.
  • File:Spell frost ring-of-frost.png  Frigid Nova Deadly — Inflicts 2500000 Frost damage to all players. Each player's damage taken is reduced for each other player standing within 5 yards, up to a maximum of four other players.

Stage Three: A Shattered World

  • Spell fire felflamebreath.png  Felburst Tank Alert — Fires a bolt of fel energy at the target, inflicting 601250 to 698750 Fire damage instantly and an additional 64000 Fire damage every 1.5 seconds over 7.5 sec. This effect stacks.
  • Ability socererking arcanewrath.png  Gravitational Pull Tank Alert — The targeted player attracts detritus from the nether, and is periodically struck by an impact from the area surrounding the platform.
    • Spell fire felpyroblast.png  Fel Impact Tank Alert — A piece of fel debris impacts the affected player, inflicting 3520000 Physical damage to players within 5 yards and destroying any pools of Felflame it comes into contact with.
  • Inv ember fel.png  Fel Ejection — Creates a ball of fel energy which bursts, launching missiles at several players, inflicting 650000 Fire damage immediately, and 300000 Fire damage every 2 sec. for 8 sec. Whenever this this deals damage, it also creates a pool of Felflame.
    • Spell fire felflamestrike.png  Felflame — Inflicts 370000 Fire damage every 1 sec. to any players inside the Felflame pool. This effect stacks.
  • Ability felarakkoa feldetonation green.png  Fel Nova Deadly — Inflicts 8000000 Fire damage to all players, reduced by distance from the caster.
  • Spell fire felfire.png  Fel Ember — Fel embers drift slowly towards the ground, inflicting 3000000 Fire damage and creating several patches of Felflame when they impact.

Stage Four: Inevitable Fate

  • Inv enchant voidsphere.png  Voidburst Tank Alert Healer Alert — Fires a bolt of void energy at the target, inflicting 50000 Shadow damage every 2 sec. for 6 sec. When Voidburst expires, it will jump to two other targets, who will each receive half of the stacks that it had when it expired.
  • Ability socererking arcanewrath.png  Gravitational Pull Tank Alert — The targeted player attracts detritus from the nether, and is periodically struck by an impact from the area surrounding the platform.
    • Ability warlock handofguldan.png  Void Impact Tank Alert — Inflicts 416250 to 483750 Physical damage to the targeted player and any other players within 5 yards, and summons a Thing Which Should Not Be.
      • Tank Alert Thing That Should Not Be
        • Spell shadow summonvoidwalker.png  Void Shift Tank Alert — When a Thing Which Should Not Be is too close to Astromancer, Astromancer's damage taken is reduced by 99%.
        • Sha ability rogue bloodyeye.png  Witness the Void Important — Shows the horror of the void to players, inflicting 555000 to 645000 Shadow damage to all players and fearing any players looking towards the caster for 8 sec sec.
  • Spell shadow shadowfury.png  Void Ejection — Void energy manifests and flies to players, inflicting 700000 Shadow damage immediately, and 700000 Shadow damage after 8 sec. Additionally, after 8 sec, a Void Eruption will burst from affected players.
    • Spell shadow blackplague.png  Void Eruption — Void energy bursts from a player, summoning several Voidlings.
      • Voidling — A void-born horror whose melee strikes inflict Shadow damage.
        • Spell priest voidtendrils.png  Bursting Void — Each of a Voidling's damaging melee attacks also inflicts a stack of Voidburst to the affected target.
  • Spell priest shadoworbs.png  Void Nova — Inflicts 682000 to 718000 Shadow damage and adds a stack of Voidburst to all players.
  • Spell priest void-blast.png  World-Devouring Force — The Void beings devouring the nearby planet manifest a massive Eye of the Void. The Eye of the Void unleashes a World-Devouring Force, inflicting 100000000 Shadow damage to all players in a line in front of the eye, and creates a Remnant of the Void. Remnant of the Void periodically casts Devouring Remnant at players.
    • Spell priest void-blast.png  Devouring Remnant — Inflicts 1500000 Shadow damage, divided among all enemies in front of the Remnant of the Void.



Item Type
 [Glistening Meteorite Shard] (LFR · H · M) Holy Artifact Relic
 [Sundered Comet] (LFR · H · M) Frost Artifact Relic
 [Tempest of the Heavens] (LFR · H · M) Storm Artifact Relic
 [Brooch of the Astral Scryer] (LFR · H · M) Necklace
 [Mantle of the Torn Sky] (LFR · H · M) Leather shoulders
 [Astromancer's Greatcloak] (LFR · H · M) Cloak
 [Clutch of Azj'Aqir] (LFR · H · M) Warlock gloves
 [Doomblade Gauntlets] (LFR · H · M) Rogue gloves
 [Dreadwyrm Gauntlets] (LFR · H · M) Death knight gloves
 [Eagletalon Gauntlets] (LFR · H · M) Hunter gloves
 [Gauntlets of Bound Elements] (LFR · H · M) Shaman gloves
 [Gauntlets of the Highlord] (LFR · H · M) Paladin gloves
 [Gauntlets of the Obsidian Aspect] (LFR · H · M) Warrior gloves
 [Gloves of Enveloped Dissonance] (LFR · H · M) Monk gloves
 [Gloves of Everburning Knowledge] (LFR · H · M) Mage gloves
 [Gloves of Second Sight] (LFR · H · M) Demon hunter gloves
 [Gloves of the Astral Warden] (LFR · H · M) Druid gloves
 [Purifier's Gloves] (LFR · H · M) Priest gloves
 [Sabatons of Unchanging Fate] (LFR · H · M) Plate boots
 [Treads of Galactic Odyssey] (LFR · H · M) Cloth boots
 [Etraeus' Celestial Map] (LFR · H · M) Healer trinket
 [Star Gate] (LFR · H · M) Caster DPS trinket


  • His name is misspelled as "Estraeus" by Fancy Noble NPCs.
  • Etraeus is voiced by Jim Pirri.
  • In Greek mythology, Atraeus was the titan of dusk, stars, planets, and the art of astrology.


Patch changes

  • Legion Hotfix (2017-06-13): Fel Burst, Starburst, and Iceburst damage reduced by 15%.
  • Legion Hotfix (2017-03-21):
    • Felflame damage reduced by 20% on all difficulties.
    • Thing That Should Not Be health reduced by 10% on all difficulties.
    • Star Augur Etraeus health reduced by 10% on Mythic difficulty.
  • Legion Hotfix (2017-03-14):
    • Voidling health scaling has been adjusted to be slightly lowered for 10 players, and slightly increased for 30 players on Raid Finder, Normal, and Heroic difficulties.
    • The time at which Star Augur Etraeus casts Big Bang has been increased by 30 seconds on Raid Finder, Normal, and Heroic difficulties.
  • Legion Hotfix (2017-02-09): The following abilities' damage have been lowered by 33%, and scale up to 1.5x their new values for Raid Finder, Normal, and Heroic difficulties:
    • Coronal Ejection
    • Shatter
    • Fel Impact
    • Comet Impact
    • Iceburst
    • Felburst
Developers' notes: These changes are aimed at reducing the difficulty of the Star Augur Etraeus encounter for smaller raid groups, which may have fewer tools to deal with the damage output of these mechanics, without significantly changing anything for large groups.
  • Legion Hotfix (2017-02-07):
    • (Mythic difficulty) Increased the initial damage inflicted by Icy and Fel Ejection by roughly 40%, and their periodic damage by 100%.
    • (Mythic difficulty) Reduced the health of Star Augur Etraeus by 5%, and the health of Things That Should Not Be by 45%.
Developers' Note: These changes are aimed at shifting some of the role-specific requirements of the encounter away from damage output in favor of healing, while slightly reducing the overall difficulty of the encounter on Mythic difficulty.

External links

Nighthold Court of Stars