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BossSjonnir The Ironshaper
Image of Sjonnir The Ironshaper
Gender Male
Race Iron vrykul (Humanoid)
Level 20-30 Elite
Reaction Alliance Horde
Location The Forge of Wills
Status Deceased (lore)[1]
Killable Wrath-Logo-Small
Halls of Stone

Maiden of Grief
Tribunal of Ages
Sjonnir The Ironshaper


Other Ulduar instances

Halls of Lightning (5)
Ulduar (25)

Sjonnir The Ironshaper is an iron vrykul boss located in the non-linear instance, Halls of Stone. He was one of Loken's most trusted servants, acted as the master of the Forge of Wills, and was by all accounts eager to use it to make more iron creations for his master. He liked to go on about how weak the earthen were, and thought that flesh beings were weak and fragile.[1]

500 years ago, a dwarf named Mina Stormsmith came to the Halls of Stone and asked the iron dwarves to have her deceased brother "remade". However, they refused and were ordered by Sjonnir to kill her, as she was of flesh and therefore weak in their eyes. She fought the waves of iron dwarves until her axe shattered, but a spirit arrived in a wave of blinding light to save, and she fought her way out of Ulduar.[2]

At the time of the war against the Lich King, he was killed by the Alliance when they raided Ulduar.[3][2] His dagger, Inv weapon shortblade 70 [The Fleshshaper], ended up in the hands of those he thought so fragile.[1]

Adventure Guide[]

While some resisted Loken's corruption, Sjonnir the Ironshaper was eager to turn the Forge of Wills to a darker purpose. He considers his new creations vastly superior to the earthen, and will unleash them on any who defy Loken's will.

Attacks and abilities[]

  • Spell nature chainlightning Chain Lightning Magic Effect — Sjonnir the Ironshaper strikes a player with a lightning bolt that arcs to another nearby player. The spell affects up to 3 targets, inflicting greater Nature damage to each successive target.
  • Spell nature lightningshield Lightning Shield Magic Effect — Sjonnir the Ironshaper surrounds himself with 10 balls of lightning that have 50% chance of striking melee or ranged attackers with Nature damage. Each time the lightning shield strikes, a ball of lightning dissipates. Thus, the shield expires after 10 min. or after it has struck 10 times.
  • Spell nature lightningoverload Static Charge Magic Effect — Sjonnir the Ironshaper afflicts a player with a static charge that periodically zaps its nearby allies and enemies for Nature damage. This effect lasts until cancelled.
  • Spell nature purge Lightning Ring — Sjonnir the Ironshaper inflicts Nature damage to all players within 0 yards and increases the Nature damage they take by 10% for 15 sec.
  • Spell shadow unholyfrenzy Frenzy — When Sjonnir the Ironshaper reaches 20% health remaining, he goes into a frenzy. Frenzy increases attack speed by 50% and Physical damage done by 100%.
  • Forged Iron Dwarf — When engaged, Sjonnir the Ironshaper begins to summon Forged Iron Dwarf from the nearby forges.
    • Spell nature stormreach Lightning Tether Interruptible — Forged Iron Dwarves inflict Nature to a player every second for 5 sec.
  • Forged Iron Trogg — When Sjonnir the Ironshaper reaches 75% health remaining, he begins to summon Forged Iron Troggs from the nearby forges.
    • Spell nature stormreach Lightning Shock — Forged Iron Troggs shock a player, inflicting Nature damage.
  • Malformed Ooze — When Sjonnir the Ironshaper reaches 50% health remaining, he begins to summon Malformed Ooze from the nearby forges.
    • Combined — Malformed Oozes attempts to combined with other Malformed Oozes that they come within 0 yards of.
    • Iron Sludge — Malformed Oozes that combined become an Iron Sludge.
      • Spell nature corrosivebreath Toxic Volley — Iron Sludges inflicts Nature damage to all players.
  • Earthen Dwarf — When Sjonnir the Ironshaper reaches 25% health remaining, he begins to summon Earthen Dwarves from the nearby forges.



His lightning shield should be dispelled or spellstolen quickly as this saves some damage throughout the fight.

The tank will need to gather the adds that are spawned throughout the fight. Watch for the little blobs as they will congregate in the middle of the fight zone and form into larger oozes. If you have an AoE tank, the adds should not be a problem, continue focus firing on the boss. If your group finds them getting out of hand and aggroing the healer, they can be dealt with quickly by the DPS.

When he uses his AoE lightning attack, it is strongly recommend moving out of the way. Getting a full stack of the nature damage debuff means the oozes will likely kill the tank.


It is strongly encouraged remove his Lightning Shield (priests dispel, shamans Spell nature purge [Purge], warriors Inv shield 05 [Shield Slam], or mages Spell arcane arcane02 [Spellsteal]), as the 1000 nature damage it does in normal is increased to 3000 in heroic.

An easy method is to have one DPS on the left press and one DPS on the right press, both killing the adds as they spawn. The tank keeps Sjonnir in the center near where he starts while the healer and the other DPS are on the walkway you come in on.

Alternate heroic strategy[]

This works well even if you have no one to deal with Lighting Shield or resist nature damage. This is probably the easiest and safest method.

  • Tank boss near middle of the room, slightly closer to the entrance of the room.
  • Stay out of the channeled Lighting Ring, including Tank.
  • All DPS fend off non-elite adds to keep healer from taking hits. Adds WILL be a problem for most all tanks as healer gains threat for a long period of time prior to adds reaching healer.
  • Tank to focus on elite adds and boss.
  • When Oozing Slime mobs show up, all DPS should burn them down immediately.
  • While DPS burns adds, Tank keeps boss away from group.
  • Roughly when Slimes / Blobs are dead, elite ally dwarf NPC's lvl 81 will start to spawn and no more enemy adds will come. These dwarves will help kill the boss.
  • Focus fire down boss.

Basically, survive until you see the Slime / Blobb guys coming out around the center of the room. ALL DPS focus on the slimes at this point. Kill every one of them before they morph into uber slimes. At that point you'll have elite dwarves charging into the room to help you DPS boss down.

Again, simply avoid Lighting Ring (channeled attack), burn slimes as soon as you see them, and then burn boss.


Normal mode
Heroic Mode

Related achievements[]


There you are! I think I've just about got this door figured out. Let me know when you're ready and I'll open'er up!

Gossip We're with you Brann! Open it!

Brann Bronzebeard yells: Don't worry! Ol' Brann's got yer back! Keep that metal monstrosity busy, and I'll see if I can't sweet talk this machine into helping ye!
Soft, vulnerable shells. Brief fragile lives. You cannot escape the curse of flesh!
Brann Bronzebeard yells: This is a wee bit trickier than before... Oh, bloody--incomin'!
Brann Bronzebeard yells: What in the name o' Madoran did THAT do? Oh! Wait: I just about got it...
Brann Bronzebeard yells: Ha, that did it! Help's a-comin'! Take this, ya glowin' iron brute!
Killing a player
  • Flesh is no match for iron!
  • Armies of iron will smother the world!
  • Folvynn buul hrom onn!
Sjonnir The Ironshaper yells: Loken will not rest... until the forge is retaken! You change... nothing!
Brann Bronzebeard yells: Loken?! That's downright bothersome... We might've neutralized the iron dwarves, but I'd lay odds there's another machine somewhere else churnin' out a whole mess o' these iron vrykul!
Brann Bronzebeard yells: I'll use the forge to make batches o' earthen to stand guard... But our greatest challenge still remains: find and stop Loken!


Patch changes[]


External links[]