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Il'gynoth

Il'gynoth, Heart of Corruption - The Emerald Nightmare

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Found In

EncounterIl'gynoth, Heart of Corruption
Journal creatures11

Adventure Guide Entry

The in-game Adventure Guide text for the Il'gynoth, Heart of Corruption encounter in The Emerald Nightmare.

Lodged in the hollows of a now-decrepit world tree, Il'gynoth is a manifestation of the horrors that lie at the heart of the Nightmare. It is a mass of corruption - a thing that should not be. Its tendrils seep through the ground, emerging in countless horrifying eyestalks and limbs.

Encounter Facts

In the game's encounter order for The Emerald Nightmare, Il'gynoth comes 3rd of 7, after Ursoc and before Ysondre.

Instance modesNormal, Heroic, Mythic, Looking For Raid
Group size20 to 30 players
Instance typeRaid
ExpansionLegion
Encounter order3 of 7
Encounter ID1873
Creature typeAberration
Level45
FactionFriendly
NPC ID110808
Adventure Guide pin48.4, 48.3 on the instance map
  1. Nythendra
  2. Ursoc
  3. Il'gynoth
  4. Ysondre
  5. Elerethe Renferal
  6. Cenarius
  7. Xavius

Instance Entrance: Val'sharah

Val'sharah mapThe Emerald Nightmare entrance

The Emerald Nightmare entrance is in Val'sharah, at 56.3, 36.7 on the Val'sharah map.

Abilities & Strategy

What the in-game dungeon journal describes for this encounter. Every ability links to its spell page.

Abilities & Strategy

Overview

Players begin the encounter fighting against Il'gynoth's erupting eyestalks and tentacles, while the monstrous Eye bars the way to the heart of the tree. Defeating these tentacles spawns animated Nightmare Ichor globules, which players can destroy near the Eye to damage it. Once the Eye is defeated, players can enter the hollow to damage Il'gynoth directly for a time, after which the Eye reforms to seal the entrance to the hollow once more, killing any players who remain inside. This repeats until players defeat Il'gynoth.

Tanks
Healers
Damage Dealers
  • Move away from the raid when affected by Spew Corruption.
  • Interrupt Deathglare Tentacles' Mind Flay.
  • Lure Nightmare Ichors that are fixated on you to the Eye of Il'gynoth when they are low on health, and wait to kill them until they are in range of the Eye.
  • Avoid players targeted by Ground Slam, and move away from other players when targeted by it.

Stage One: The Ruined Ground

Players engage creatures of nightmare while the Eye of Il'gynoth watches over them, directing the forces of corruption.

Nightmare Corruption
Death Blossom
The Eye of Il'gynoth
Nightmare Ichor
Fixate
Touch of Corruption
Nightmare Explosion

On Mythic Difficulty, all players in the encounter also suffer Shadow damage every 2 seconds for 4 sec. This effect stacks.

The Forces of Corruption

When killed, the forces of corruption will spawn Nightmare Ichor.

Nightmare Horror
Deathglare Tentacle
Corruptor Tentacle
Dominator Tentacle

Stage Two: The Heart of Corruption

When the Eye of Il'gynoth is destroyed, the chamber holding Il'gynoth's beating heart is revealed.

Ability Spells

Every ability the Adventure Guide lists for Il'gynoth, with its spell's school, cast time and duration and the description the game gives it.

Dark Reconstitution

Shadow · 50 sec cast

Il'gynoth gathers psychic energy, unleashing it to reseal his lair, killling all players who remain inside, and regrowing the Eye of Il'gynoth.

Cursed Blood

Shadow · Instant

Reabsorption

Shadow · Instant

If Nightmare Ichor enters the chamber with Il'gynoth's heart, it will be reabsorbed in a burst of nightmare corruption, inflicting Shadow damage to all players.

Violent Bloodburst

Shadow · Instant

Cursed blood pools around the Heart of Il'gynoth, creating growing pools of Shadow Corruption.

Final Torpor

Shadow · 50 sec cast

After growing tired of battle, Il'gynoth will gather the energies of the Nightmare to burn out the minds of any living thing in the area, instantly killing it.

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3D Model

First-party render from the game files. Model © Blizzard Entertainment.

Drops

Loot the dungeon journal lists for this encounter in The Emerald Nightmare.

What is shown is the loot the game's own dungeon journal lists for this encounter.

What Each Drop Is

The Il'gynoth, Heart of Corruption encounter lists 16 items in the dungeon journal, item level 50. Equip slots covered: Head, Wrist, Finger, Hands, Trinket, Shoulder, Legs and Waist. Every piece binds when picked up, so none of it reaches the Auction House.

  • Celestially Aligned Hood Head (Cloth), item level 50, requires level 45. Bind on Pickup. Stats: Stamina, Intellect, Mastery and Haste. A vendor pays 41g 70s for it.
  • Clasp of Cosmic Insignificance Wrist (Cloth), item level 50, requires level 45. Bind on Pickup. Stats: Stamina, Intellect, Haste and Mastery. A vendor pays 27g 90s for it.
  • Cube of Malice Gem, item level 50, requires level 45. Bind on Pickup. A vendor pays 47g 49s for it.
  • Dreadful Cyclopean Signet Finger, item level 50, requires level 45. Bind on Pickup. Stats: Stamina, Haste and Mastery. A vendor pays 37g 14s for it.
  • Dreamsculptor's Gloves Hands (Leather), item level 50, requires level 45. Bind on Pickup. Stats: Stamina, Agility or Intellect, Haste and Critical Strike. A vendor pays 27g 37s for it.
  • Gauntlets of Malevolent Intent Hands (Mail), item level 50, requires level 45. Bind on Pickup. Stats: Stamina, Agility or Intellect, Haste and Versatility. A vendor pays 29g 29s for it.
  • Goblet of Nightmarish Ichor Trinket, item level 50, requires level 45. Bind on Pickup. Stats: Agility or Strength. A vendor pays 28g 56s for it. Equip: Nightmarish Ichor.
  • Gore-Drenched Fetish Gem, item level 50, requires level 45. Bind on Pickup. A vendor pays 47g 13s for it.
  • Otherworldy Leather Mantle Shoulder (Leather), item level 50, requires level 45. Bind on Pickup. Stats: Stamina, Agility or Intellect, Critical Strike and Mastery. A vendor pays 42g 51s for it.
  • Pauldrons of Shifting Runes Shoulder (Plate), item level 50, requires level 45. Bind on Pickup. Stats: Stamina, Strength or Intellect, Critical Strike and Versatility. A vendor pays 43g 60s for it.
  • Radiating Metallic Shard Gem, item level 50, requires level 45. Bind on Pickup. A vendor pays 47g 31s for it.
  • Singular Chain Leggings Legs (Mail), item level 50, requires level 45. Bind on Pickup. Stats: Stamina, Agility or Intellect, Mastery and Haste. Tooltip: “Try as you might, you cannot find where this series of interconnected links starts or ends.” A vendor pays 58g 68s for it.
  • Sloshing Core of Hatred Gem, item level 50, requires level 45. Bind on Pickup. A vendor pays 46g 95s for it.
  • Spontaneous Appendages Trinket, item level 50, requires level 45. Bind on Pickup. Stats: Mastery. A vendor pays 28g 66s for it. Equip: Horrific Appendages.
  • Waistplate of Nameless Horror Waist (Plate), item level 50, requires level 45. Bind on Pickup. Stats: Stamina, Strength or Intellect, Haste and Critical Strike. A vendor pays 28g 65s for it.
  • Wriggling Sinew Trinket, item level 50, requires level 45. Bind on Pickup. Stats: Critical Strike. A vendor pays 18s 90c for it. Use: Maddening Whispers.

Read from the current game build's item data. Listed prices come from our latest US Auction House scan; a drop that binds when picked up never has one.

Related

Achievements for Defeating It

8 achievements list a victory over Il'gynoth among their criteria.