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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

Thanks to Kats & Layria for her careful work as copy editor for the English texts.

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

KICK THE BOSS WHEN

HE STARTS ITS WHIRLWIND.

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Lightning Whirl
5s Channel

Interruptible channel. For 5s, inflicts damage to random players.

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

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.

EVERYONE

MOVE AWAY FROM BRUNDIR

WHEN HE CASTS HIS AOE.

Play Button
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Overload
6s Cast

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

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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.

Stormcaller Brundir
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Lightning Whirl
5s Channel

Interruptible channel. For 5s, inflicts damage to random players.

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Chain Lightning
2s Cast

An interruptible chain lightning.

SHARE LINK
Overload
6s Cast

A 30 yards AoE. Move away quickly on cast.

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Supercharge
Damage Amplifier

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

Stormcaller Brundir
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Lightning Whirl
5s Channel

Interruptible channel. For 5s, inflicts damage to random players.

SHARE LINK
Chain Lightning
2s Cast

An interruptible chain lightning.

SHARE LINK
Overload
6s Cast

A 30 yards AoE. Move away quickly on cast.

Runemaster Molgeim
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Rune of Death
Instant Cast

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

SHARE LINK
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.

SHARE LINK
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.

Phase 3

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

EVERYONE

MOVE AWAY IF YOU ARE

NOT TARGETED. RUN AT

THE BOSS IF FIXATED.

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Lightning Tendrils
Fixate Mechanic

The boss fixates a player, inflicting heavy nature damage to all players near him, until he reaches that player.


All players should move away from the boss, while the fixated player should use a defensive and move in.

EVERYONE

KICK THE BOSS WHEN

HE STARTS ITS WHIRLWIND.

Play Button
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Lightning Whirl
5s Channel

Interruptible channel. For 5s, inflicts damage to random players.

EVERYONE

MOVE AWAY FROM BRUNDIR

WHEN HE CASTS HIS AOE.

Play Button
SHARE LINK
Overload
6s Cast

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

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The Assembly Of Iron
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