TheWoWDBBoss
Residual Energy
Fel Lord Zakuun - Hellfire Citadel
Residual Energy is a boss of the Fel Lord Zakuun encounter in Hellfire Citadel.
Found In
Encounter Facts
3D Model
First-party render from the game files. Model © Blizzard Entertainment.
Model
Background
Abilities & Strategy
What the in-game dungeon journal describes for this encounter. Every ability links to its spell page.
Abilities & Strategy
Overview
Zakuun alternates between attacking with his axe, and flinging it to the ground to strike with his fists, modifying his abilities in the process. Throughout the encounter, Zakuun attempts to form Fel Crystals, though players may prevent this process by absorbing the energy themselves. In either case, some of Zakuun's abilities will trigger a massive explosion if they strike either a Crystal or a player with absorbed Latent Energy.
Tanks
- Stand within Rumbling Fissures to seal them when not actively tanking.
- When the Fel Lord is Disarmed or Heavily Armed, both tanks must stand together.
- Soul Cleave banishes you to the Shadow Realm, allowing you to shed your Latent Energy.
Damage Dealers
- Stand within Rumbling Fissures to seal them.
- When targeted with Seed of Destruction, aim Wake of Destruction away from any Fel Crystals.
- When Befouled, move away from your allies.
Healers
- Stand within Rumbling Fissures to seal them.
- When targeted with Seed of Destruction, aim Wake of Destruction away from any Fel Crystals.
- When Befouled, move away from your allies.
Encounter-Wide Mechanics
These mechanics are seen throughout the encounter:
Latent Energy
Spell details
Unleashed Energy
Spell detailsDestructive Forces
Some of the Fel Lord's abilities will trigger an explosion if they strike a player who has Latent Energy.
Wake of Destruction
Spell details
Ring of Destruction
Spell detailsFissures and Crystals
Zakuun creates Rumbling Fissures on the ground nearby. If a Rumbling Fissure is not absorbed by standing within it, it forms a Fel Crystal.
Rumbling Fissure
Spell detailsThe last Rumbling Fissure present after any others have been absorbed will immediately transform into a Fel Crystal.
Fel Crystal
Spell detailsArmed
At the beginning of the fight Zakuun is armed with his axe. While Armed, Zakuun swings slowly and hits a single target with his melee attacks.
Soul Cleave
Spell detailsOnly the primary target is afflicted with Cloven Soul; but all targets hit by Soul Cleave are Disembodied.
Disembodied
Spell detailsOn Heroic and Mythic Difficulties, when the victim re-enters the Mortal Realm, Wakes of Destruction are unleashed. On Mythic Difficulty, players who had Latent Energy while Disembodied gain Exhausted Soul after Disembodied ends.
Cloven Soul
Spell detailsResidual Energy
Residual Energy is left behind whenever a player leaves the Shadow Realm and will continually fire either Wakes of Destruction or Rings of Destruction.
Cavitation
Spell details
Befouled
Spell detailsFoul Explosion
Spell detailsDisarmed
Zakuun hurls his axe at the target location, where it lodges in the floor and damages the raid with Fel Explosions. While Disarmed, Zakuun attacks with both fists, is Heavy Handed, and gains 30% haste.
Fel Explosions
Heavy Handed
Seed of Destruction
Enrage
Spell details
Heavily Armed
Spell detailsDrops
Loot the dungeon journal lists for this encounter in Hellfire Citadel.
What is shown is the loot the game's own dungeon journal lists for this encounter.
Adventure Guide Entry
The in-game Adventure Guide text for the Fel Lord Zakuun encounter in Hellfire Citadel.
Residual Energy is created whenever a player leaves the Shadow Realm and will fire off either Rings of Destruction or Wakes of Destruction.
Speculated by some scholars of the Legion to be an evolved version of the common felguard, Fel Lords serve as enforcers in the direct service of Archimonde. Their cruelty is matched only by their brute force. Zakuun was set to a task that called upon both of these traits in equal measure: breaking the iron will of a stubborn and defiant orc chieftain of the Warsong Clan....
What Each Drop Is
The Fel Lord Zakuun encounter lists 27 items in the dungeon journal, item levels 44 to 45. Equip slots covered: Feet, Neck, Back, One-Hand, Trinket, Waist, Two-Hand, Legs, Wrist, Chest, Finger, Hands and Head. Every piece binds when picked up, so none of it reaches the Auction House.
- Bloody Dagger-Heeled Pumps Feet (Cloth), item level 45, requires level 40. Bind on Pickup. Stats: Intellect, Stamina, Critical Strike and Versatility. Tooltip: “Very fashionable, but hard to walk in.” A vendor pays 35 gold7 silver for it.
- Chain of Lidless Eyes Neck, item level 45, requires level 40. Bind on Pickup. Stats: Agility, Stamina, Haste and Mastery. A vendor pays 20 gold7 silver for it.
- Choker of Whispered Promises Neck, item level 45, requires level 40. Bind on Pickup. Stats: Intellect, Stamina, Versatility and Critical Strike. A vendor pays 18 gold99 silver for it.
- Cloak of Hideous Unity Back (Cloth), item level 45, requires level 40. Bind on Pickup. Stats: Intellect, Stamina, Haste and Critical Strike. A vendor pays 32 gold80 silver for it.
- Demonblade Eviscerator One-Hand (Fist Weapon), item level 45, requires level 40. Bind on Pickup. Stats: Agility, Stamina, Haste and Critical Strike. A vendor pays 63 gold55 silver for it.
- Discordant Chorus Trinket, item level 45, requires level 40. Bind on Pickup. Stats: Strength. Usable by Warrior, Paladin and Death Knight. A vendor pays 13 gold50 silver for it. Equip: Howling Madness.
- Girdle of the Legion General Waist (Mail), item level 45, requires level 40. Bind on Pickup. Stats: Agility or Intellect, Stamina, Mastery and Haste. A vendor pays 22 gold54 silver for it.
- Hellrender Two-Hand (Two-Handed Axe), item level 45, requires level 40. Bind on Pickup. Stats: Strength, Stamina, Critical Strike and Mastery. A vendor pays 77 gold6 silver for it.
- Leggings of Eternal Terror Legs (Leather), item level 45, requires level 40. Bind on Pickup. Stats: Agility or Intellect, Stamina, Haste and Critical Strike. A vendor pays 47 gold34 silver for it.
- Legguards of Grievous Consonances Legs (Plate), item level 45, requires level 40. Bind on Pickup. Stats: Strength or Intellect, Stamina, Haste and Critical Strike. A vendor pays 45 gold99 silver for it.
- Manacles of the Multitudes Wrist (Leather), item level 45, requires level 40. Bind on Pickup. Stats: Agility or Intellect, Stamina, Critical Strike and Mastery. A vendor pays 23 gold38 silver for it.
- Mindscythe of the Legion One-Hand (Fist Weapon), item level 45, requires level 40. Bind on Pickup. Stats: Intellect, Stamina, Mastery and Haste. A vendor pays 63 gold78 silver for it.
- Ringmail of Madness Accordant Chest (Mail), item level 45, requires level 40. Bind on Pickup. Stats: Agility or Intellect, Stamina, Haste and Critical Strike. A vendor pays 47 gold for it.
- Sash of Unending Anguish Waist (Cloth), item level 45, requires level 40. Bind on Pickup. Stats: Intellect, Stamina, Mastery and Haste. A vendor pays 22 gold88 silver for it.
- Zakuun's Signet of Command Finger, item level 45, requires level 40. Bind on Pickup. Stats: Agility or Strength, Stamina, Versatility and Critical Strike. A vendor pays 28 gold80 silver for it.
- Befouled Demonhide Belt Waist (Plate), item level 44, requires level 40. Bind on Pickup. Stats: Strength or Intellect, Stamina, Haste and Critical Strike. A vendor pays 21 gold39 silver for it.
- Bindings of Imminent Fury Wrist (Cloth), item level 44, requires level 40. Bind on Pickup. Stats: Intellect, Stamina, Critical Strike and Mastery. A vendor pays 21 gold95 silver for it.
- Bloodcrystal Chaincloak Back (Cloth), item level 44, requires level 40. Bind on Pickup. Stats: Agility or Strength, Stamina, Versatility and Critical Strike. A vendor pays 32 gold9 silver for it.
- Brittleskin Wraps Hands (Leather), item level 44, requires level 40. Bind on Pickup. Stats: Agility or Intellect, Stamina, Critical Strike and Haste. A vendor pays 21 gold72 silver for it.
- Chain of Agonizing Woe Neck, item level 44, requires level 40. Bind on Pickup. Stats: Intellect, Stamina, Haste and Critical Strike. A vendor pays 17 gold96 silver for it.
- Gaze of Superiority Head (Plate), item level 44, requires level 40. Bind on Pickup. Stats: Strength or Intellect, Stamina, Haste and Critical Strike. A vendor pays 32 gold92 silver for it.
- Imp-Infested Legplates Legs (Mail), item level 44, requires level 40. Bind on Pickup. Stats: Agility or Intellect, Stamina, Haste and Critical Strike. A vendor pays 44 gold44 silver for it.
- Ironblade Knuckles One-Hand (Fist Weapon), item level 44, requires level 40. Bind on Pickup. Stats: Agility, Stamina, Haste and Mastery. A vendor pays 59 gold66 silver for it.
- Manacles of the Demon General Wrist (Leather), item level 44, requires level 40. Bind on Pickup. Stats: Agility or Intellect, Stamina, Mastery and Haste. A vendor pays 22 gold3 silver for it.
- Voidswirling Throat-Globe Neck, item level 44, requires level 40. Bind on Pickup. Stats: Intellect, Stamina, Versatility and Mastery. A vendor pays 18 gold10 silver for it.
- Withering Waistwrap Waist (Mail), item level 44, requires level 40. Bind on Pickup. Stats: Agility or Intellect, Stamina, Haste and Critical Strike. A vendor pays 21 gold32 silver for it.
- Zakuun's Smoldering Seal Finger, item level 44, requires level 40. Bind on Pickup. Stats: Agility, Stamina, Haste and Mastery. A vendor pays 27 gold83 silver for it.
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.
Achievements for Defeating It
2 achievements list a victory over Residual Energy among their criteria.
Where to Find Residual Energy
Quests in Hellfire Citadel
- Destructor's Rise
- Destructor's Rise
- Maw of Souls
- Maw of Souls
- Pits of Mannoroth
- Pits of Mannoroth
- Temple of Tyranny
- Temple of Tyranny
- The Black Gate
- The Black Gate
- The Fel Spire
- The Fel Spire