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Ulduar

The Assembly Of Iron

Boss #5
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Strategy Guide

FIGHT OVERVIEW
  • The boss has 3 phases. Each time you kill a boss, the remaining ones heal to full and gain an ability, entering the next phase.

  • In easy mode, you will want to kill the boss in this order: Steelbreaker > Molgeim > Brundir

Hard Mode
  • For the Hard Mode, you must kill Steelbreaker last, giving the following order: Brundir > Molgeim > Steelbreaker

Phase 1

Focus on killing the following boss for each difficulty: NM / MM = Steelbreaker, HM = Brundir.

EVERYONE

MOVE AWAY FROM BRUNDIR

WHEN HE CASTS HIS AOE.

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Overload
6s Cast

A 30 yards AoE around Stormcaller Brundir. Move away quickly on cast.

EVERYONE

MOVE THE BOSS OUT OF

THE RUNES AND GO INSIDE

TO GAIN 50% DAMAGE DONE.

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Rune of Power
Damage Amplifying Zone

50% damage increase to anyone who stands in it, bosses or players.


Move the boss out, and go in as a DPS.

EVERYONE

HAVE MITIGATION UP

ON TANKS AND QUICKLY

DISPEL THEM.

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Fusion Punch
Tank Crusher & DoT

Heavy hitting attack on the tank, applying a DoT that must be dispelled quickly. Try to mitigate this attack as much as possible.

Stormcaller Brundir
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Chain Lightning
2s Cast

An interruptible chain lightning.

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Overload
2s Cast

A 30 yards AoE. Move away quickly on cast.

Steelbreaker
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High Voltage
Damage Aura

Ticking damage on the raid every 3 seconds.

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Fusion Punch
Tank Crusher & DoT

Heavy hitting attack on the tank, applying a DoT that must be dispelled quickly. Try to mitigate this attack as much as possible.

Runemaster Molgeim
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Shield of Runes
1.5 Cast

An absorb shield on the boss that must be spellstealed or purged.


If the absorb shield is broken from damage, the boss gains 50% damage for 15 seconds.

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Rune Of Power
Damage Amplifying Zone

50% damage increase to anyone who stands in it, bosses or players.


Move the boss out, and go in as a DPS.

Stormcaller Brundir
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Chain Lightning
2s Cast

An interruptible chain lightning.

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Overload
2s Cast

A 30 yards AoE. Move away quickly on cast.

Runemaster Molgeim
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Shield of Runes
1.5 Cast

An absorb shield on the boss that must be spellstealed or purged.


If the absorb shield is broken from damage, the boss gains 50% damage for 15 seconds.

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Rune Of Power
Damage Amplifying Zone

50% damage increase to anyone who stands in it, bosses or players.


Move the boss out, and go in as a DPS.

Steelbreaker
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High Voltage
Damage Aura

Ticking damage on the raid every 3 seconds.

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Fusion Punch
Tank Crusher & DoT

Heavy hitting attack on the tank, applying a DoT that must be dispelled quickly. Try to mitigate this attack as much as possible.

Phase 2

The bosses left deal 25% more damage. Focus on killing the following boss for each difficulty: NM = Molgeim, MM/HM = Brundir.

EVERYONE

VERY QUICKLY MOVE

OUT OF THE AOE, IT

HITS LIKE A TRUCK.

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Rune Of Death
Instant Cast

A lethal large AoE on a random player, ticking very quickly and fast.


Move out immediately. If you're stacked with other players, you're more likely to be affected.

EVERYONE

HAVE MITIGATION UP

ON TANKS AND QUICKLY

DISPEL THEM.

Play Button
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Fusion Punch
Tank Crusher & DoT

Heavy hitting attack on the tank, applying a DoT that must be dispelled quickly. Try to mitigate this attack as much as possible.

EVERYONE

MOVE THE BOSS OUT OF

THE RUNES AND GO INSIDE

TO GAIN 50% DAMAGE DONE.

Play Button
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Rune Of Power
Damage Amplifyer Zone

50% damage increase to anyone who stands in it, bosses or players.


Move the boss out, and go in as a DPS.

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Supercharge
Damage Amplifier

Each time a boss dies, all remaining bosses gain a stacking 25% damage done buff.

Steelbreaker
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Static Disruption
20s Vulnerability

A projectile thrown on a random player that inflicts an AoE damage with a 50% nature damage taken debuff for 20s on all players hit.


This makes you much more vulnerable to the High Voltage aura.

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Fusion Punch
Tank Crusher & DoT

Heavy hitting attack on the tank, applying a DoT that must be dispelled quickly. Try to mitigate this attack as much as possible.

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High Voltage
Damage Aura

Ticking damage on the raid every 3 seconds.


Stacks of Supercharge gained after a boss death will make this ability inflicts more dangerous damage.

Runemaster Molgeim
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Rune of Death
Instant Cast

A lethal large AoE on a random player, ticking very quickly and fast.

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Shield Of Rune
1.5s Cast

An absorb shield on the boss that must be spellstealed or purged.


If the absorb shield is broken from damage, the boss gains 50% damage for 15 seconds.

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Rune Of Power
Damage Amplifying Zone

50% damage increase to anyone who stands in it, bosses or players.


Move the boss out, and go in as a DPS/Healer.

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Supercharge
Damage Amplifier

Each time a boss dies, all remaining bosses gain a stacking 25% damage done buff.

Runemaster Molgeim
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Rune of Death
Instant Cast

A lethal large AoE on a random player, ticking very quickly and fast.

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Shield Of Rune
1.5s Cast

An absorb shield on the boss that must be spellstealed or purged.


If the absorb shield is broken from damage, the boss gains 50% damage for 15 seconds.

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Rune Of Power
Damage Amplifying Zone

50% damage increase to anyone who stands in it, bosses or players.


Move the boss out, and go in as a DPS/Healer.

Steelbreaker
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Static Disruption
20s Vulnerability

A projectile thrown on a random player that inflicts an AoE damage with a 50% nature damage taken debuff for 20s on all players hit.


This makes you much more vulnerable to the High Voltage aura.

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Fusion Punch
Tank Crusher & DoT

Heavy hitting attack on the tank, applying a DoT that must be dispelled quickly. Try to mitigate this attack as much as possible.

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High Voltage
Damage Aura

Ticking damage on the raid every 3 seconds.


Stacks of Supercharge gained after a boss death will make this ability inflicts more dangerous damage.

Phase 3

Kill the last boss. It will have a 50% damage buff and 2 more abilities.

TANKS

UPON EXPIRATION OF THE

DAMAGE BUFF THE TARGET

EXPLODES IN A 15Y LETHAL AOE.

Play Button
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Overwhelming Power
35s Kamizake Buff

The current target (often the tank) gains 200% damage done for 35 seconds.


Upon expiration, the target dies, inflicting lethal damage in 15 yards and healing the boss and increasing its damage by 25% from Electrical Charge.

EVERYONE

DYING WILL HEAL THE

BOSS AND INCREASE ITS

DAMAGE PERMANENTLY.

Play Button
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Electrical Charge
Permanent Aura

Each time a pet or a player dies, the boss is healed by a portion of his health and gains 25% damage.

EVERYONE

HAVE MITIGATION UP

ON TANKS AND QUICKLY

DISPEL THEM.

Play Button
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Fusion Punch
Tank Crusher & DoT

Heavy hitting attack on the tank, applying a DoT that must be dispelled quickly. Try to mitigate this attack as much as possible.

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The Assembly Of Iron
AVAILABLE ANALYSIS
- Runes uptime
- Tank swap speed
- Boss' cast interrupts
- Hard Mode support
- Potions usage
- Many more insights