BossMutanus the Devourer
Image of Mutanus the Devourer
Race Murloc (Humanoid)
Level 8-30 Elite
Reaction Alliance Horde
Location Wailing Caverns
Status Deceased (lore),[1] Killable (WoW)
Wailing Caverns

Lady Anacondra
Lord Pythas
Lord Cobrahn
Deviate Faerie Dragon (rare)
Lord Serpentis
Verdan the Everliving
Mutanus the Devourer





Mutanus the Devourer is the last boss of the Wailing Caverns.


Mutanus in World of Warcraft.

Mutanus is the final boss in Wailing Caverns. You must return to the entrance to summon him. He'll appear during the Naralex event after 2 waves of smaller mobs. He hits quite hard, and if he catches you off-guard, he could potentially wipe out your group. Make sure you eat and drink before he spawns. Mutanus has a powerful sleep spell called Delusions of Naralex which he will sometimes cast during the fight. Only enter at full health.


Mutanus appears to disrupt any attempt by the Disciple of Naralex to wake the sleeping Naralex. Manifested from Naralex's Nightmare, Mutanus the Devourer has been ordered by whatever force has infected Naralex's dreams to prevent anyone from awakening him. Mutanus appears as a colossal albino murloc.

When Mutanus crossed over from the Emerald Nightmare, he brought with him things that should not exist in Azeroth, including Deep Fathom Ring. The ring was removed from Mutanus' hand.[1]

Adventure Guide

From the darkest corners of Naralex's twisted mind, the corruption plaguing the Emerald Dream has manifested in the form of the druid's worst enemy: murlocs. The aberration known as Mutanus has come to the waking world to devour any who seek to liberate Naralex from the Nightmare's clutches.

Wrath of the Lich King

Wrath of the Lich King This section concerns content related to Wrath of the Lich King.

Mutanus is a "memory" in the fight against Argent Confessor Paletress in the Trial of the Champion encounter of the Crusaders' Coliseum.


  • Spell nature sleep.png  Naralex's Nightmare Magic Effect Interruptible — Puts the enemy target to sleep for up to 15 sec. Any hostile action will awaken the target. Only one target can be slept at a time.
  • Ability physical taunt.png  Terrify Magic Effect — Terrifies an enemy, causing it to flee in fear for 4 sec. Only 1 target can be terrified at a time.
  • Spell nature thunderclap.png  Thundercrack Magic Effect — Inflicts 94 to 106 Nature damage to nearby enemies, stunning them for 2.50 sec.

He is also immune to Shadow spells.


Notable Loot

Related achievements

In Hearthstone

Hearthstone This section contains information exclusive to Hearthstone and is considered non-canon.

Mutanus appears as a legendary minion in the Wailing Caverns mini-set for Hearthstone. Its flavor text reads: As long as Naralex stays under the blanket, Mutanus can't get him.

The Devourer appears as an epic Fighter mercenary in the Mercenaries game mode.


Patch changes


External links