BossWill of the Emperor
Image of Will of the Emperor
Race Mogu (Humanoid)
Level ?? Boss
Reaction Alliance Horde
Location Mogu'shan Vaults
Status Killable


Will of the Emperor is the last boss in Mogu'shan Vaults. It is a dual-target add fight consisting of Qin-xi and Jan-xi.

To start the fight on heroic mode, interact with the Ancient Mogu Pipes on the lower level.


Adventure Guide

The core chamber of the vaults is protected by stone soldiers who have been motionless for centuries. They are row upon row of warriors, statues armed for a battle that never began. What treasures do they guard? And what is their tie to the titanic power buried with them here in the shadows?

Spells and Abilities

  • Spell holy powerinfusion.png  Titan Gas — Titan Gas fills the room, inflicting 20000 Frost damage every 1 sec. to all players and energizing both players and constructs, increasing melee damage dealt.
  • Emperor's Rage Damage Dealer Alert — The smallest Terracotta warrior, the Emperor's Rage strike quickly with dual axes and were often the foremost lines in Lei Shin's mechanical armies.
    • Priest icon chakra red.png  Focused Assault — Fixates on a player, attacking only that player until they are dead or can no longer be found.
    • Inv chest leather 04.png  Unarmored Damage Dealer Alert — The Emperor's Rage wear very little armor and are susceptible to all forms of crowd-control.
  • Emperor's Courage — The Emperor's Courage carry a polearm to harry opponents, and form a powerful defensive wall with shields and armor.
    • Priest icon chakra green.png  Focused Defense — Comes to the aid of Jan-Xi or Qin-Xi by fixating on a tank, attacking only that player until they are dead or can no longer be found.
    • Inv polearm 2h cataclysm b 02.png  Impeding Thrust — Inflicts 100% weapon damage and slows the target, reducing movement speed by 25% for 10 sec. Stacks up to 4 times.
    • Inv chest mail 09.png  Half Plate — The Emperor's Courage wear directional armor. All damage taken from the front is blocked or deflected, but the construct can be snared.
  • Emperor's Strength — The Emperor's Strength are heavily-armored and strike earth-shaking blows with a massive two-handed hammer.
    • Inv mace 42.png  Energizing Smash — Smashes the ground in front of the Soldier, inflicting 300,000 Physical damage to players within 10 yards of the strike zone and stunning them for 2 sec. Each time Energizing Smash is cast, the radius increases by 1 yard.
    • Inv chest plate05.png  Full Plate — The Emperor's Strength wear heavy armor and cannot be crowd-controlled in any way.

Jan-Xi and Qin-Xi

Jan-Xi and Qin-Xi activate after 90 seconds and share a health pool.

  • Devastating Combo Important — Jan-xi and Qin-xi perform a devastating combination of five attacks. In Heroic Difficulty, the Devastating Combo consists of ten attacks.
    • Ability warrior riposte.png  Devastating Arc Deadly — Strikes a 25-yard hemispherical area to the left, right, or in front of Jan-Xi or Qin-Xi. Inflicts 300,000 Physical damage and reduces armor by 10% for 2 min. Stacks up to 10 times and pierces all immunities.
    • Ability warstomp.png  Stomp Deadly — Stomps the ground, inflicting 300,000 Physical damage to all players within 12 yards and stunning them for 2 sec. This attack pierces all immunities.
  • Spell magic magearmor.png  Magnetic Armor Tank Alert — Magnetizes the current target for 10 sec. If a magnetized player is more than 16 yards from the construct, they will be pulled back to the construct.
  • Ability warrior decisivestrike.png  Opportunistic Strike Tank Alert Damage Dealer Alert — If all players avoid all attacks in a Devastating Combo, Jan-Xi or Qin-Xi becomes unbalanced, granting all players within 16 yards the Opportunistic Strike ability for 3 sec. Inflicts 500,000 Physical damage, 1,000,000 Physical damage on Heroic.

Titan Spark Heroic Difficulty

On Heroic difficulty, when any construct dies, a Titan Sparks are released.

  • Priest icon chakra blue.png  Focused Energy — Fixates on a player, attacking only that player until they are dead or can no longer be found.
  • Spell nature lightningoverload.png  Energy of Creation Deadly — When a Titan Spark dies, reaches its target, or comes within 8 yards of a player or construct it releases the Energy of Creation. Inflicts 750,000 Nature damage to all players within 8 yards and energizes any constructs, increasing attack speed by 50% for 2 min. This effect stacks.


The fight alternates between an add phase and a brief reprieve, indicated on normal mode with Titan Gas.

While Jan-xi and Qin-xi are active, each tank will have his/her own area by the left stairs and the right stairs, leaving the majority of the fight area free for the rest of the raid to deal with adds. Healers and ranged DPS should cluster together towards the center most of the time.

The DPS priority for killing adds is Courage > Rages > Strength > Jan-xi and Qin-xi. The adds come out on a timer and in a set order. Courages are top priority and must be killed before they reach their target. Rages fixate and melee hard, so they should be killed quickly while being stunned and knocked back. Strengths have a normal aggro table but no melee attack, so they can be tanked by any DPS though it is preferable for a melee DPS to do it. Tank them to the side of the room to avoid AOE stunning the ranged group and keep it occupied until there are no Rages.

For Titan Gas, healers and ranged should group up for heals and melee can finally move to Jan-xi and Qin-xi. This is the brief reprieve from adds that allows the raid to whittle down the bosses. However, an important part of this encounter for the tanks and melee is the Devastating Combo. Not only is it a DPS gain for people who do it right, multiple people failing and getting hit during Titan Gas will put great strain on the healers.

Devastating Combo

The attacks performed by the bosses can be 180° Devastating Arc front, left, or right, or a smaller 360° Stomp. Each attack has its own wind-up pose. The leg raised precedes the 360° stomp. A pre-thrust pose precedes the front blast. If he points his sword to the left or the right, then the side the sword starts on is safe and the other side is about to get blasted. To help people know where the front, left and right are, mark the tank. There is also a visual indicator that looks like a thin blue arc showing where the strike will hit. Dodging all five strikes will give a player an extra action button called Opportunistic Strike that s/he can use on Jan-xi or Qin-xi to deal a large amount of damage.


Item Type
 [Sigil of Power] Quest item
 [Chestguard of Eternal Vigilance] (LFR · H) Tank plate chest
 [Crown of Opportunistic Strikes] (LFR · H) Agility leather helm
 [Dreadeye Gaze] (LFR · H) Agility mail helm
 [Enameled Grips of Solemnity] (LFR · H) Spirit mail gloves
 [Fang Kung, Spark of Titans] (LFR · H) Bow
 [Grips of Terra Cotta] (LFR · H) Agility mail gloves
 [Hood of Focused Energy] (LFR · H) DPS cloth helm
 [Jang-xi's Devastating Legplates] (LFR · H) DPS plate leggings
 [Lei Shen's Final Orders] (LFR · H) Strength trinket
 [Magnetized Leggings] (LFR · H) Spirit leather leggings
 [Qin-xi's Polarizing Seal] (LFR · H) Healer trinket
 [Spaulders of the Emperor's Rage] (LFR · H) Spirit plate shoulders
 [Tihan, Scepter of the Sleeping Emperor] (LFR · H) Spirit one-handed mace
 [Worldwaker Cachabon] (LFR · H) Caster necklace

Related Achievements


Lorewalker Cho says: Astounding! An actual, functional Mogu construct machine.
Lorewalker Cho says: We cannot allow this to fall into the wrong hands.
Lorewalker Cho says: An endless army of soulless abominations...I shudder to think of the violence that would erupt from such a machine.
Lorewalker Cho says: You must destroy it. Here, now, before any harm can come to Pandaria.
Lorewalker Cho says: Turn the machine on, I will lock the door behind you.
Lorewalker Cho says: May the great crane guide your steps.
Summoning Emperor's Rage
Ancient Mogu Machine yells: The Emperor's Rage echoes through the hills.
Summoning Emperor's Strength
Ancient Mogu Machine yells: The Emperor's Strength grips this land with fists of iron.
Summoning Emperor's Courage
Ancient Mogu Machine yells: The Emperor's Courage burns everlasting.
Summoning Jan-Xi and Qin-Xi
Ancient Mogu Machine yells: The Endless Army will crush the Emperor's foes.
Casting Titan Gas
Ancient Mogu Machine yells: The Emperor's Breath abates.
Titan Gas disabled
Ancient Mogu Machine yells: The Emperor's Breath is regained.
Lorewalker Cho says: It is done then. many of these machines are hidden beneath the earth? How much do we not know about the dark secrets of the mogu?
Lorewalker Cho says: I fear that our war against our ancient enemies is still far from over.
Unused quote
Ancient Mogu Machine: The Emperor's Will dominates all it beholds.


  • World first heroic kill achieved on 10 man 11.10.2012 by DREAM Paragon - EU-Lightning's Blade.
  • "Show Me Your Moves" is said by Captain Falcon in his franchise.
  • Ancient Mogu Machine is voiced by Rick Wasserman.



Heroic Guides

Raid Finder

10-man Heroic

10-man Normal

25-man Heroic

25-man Normal



Patch changes

External links