
Slagmaw
Boss
- Lv 48
- Attacks on sight
- Ironhearth Basin
Where it lives
Ironhearth Basin
It lives in The Sunken Forge.
Fight
Health 58,700
The fight (tap to show)
- Mechanic damage
This boss's marks deal a fixed amount set for its level (48), in place of the blow multiples below: a move you could dodge 599 damage, a hazard 524 damage, its signature failed 823 damage, burning ground 180 damage a second. More levels and better gear mean more health, so the same hit takes a smaller part of it. Armour, shields and barriers turn aside at most 20% of it.
- Slag Spew
A 90° cone at the one holding it, 6 tiles long, 1.6 s ahead (alone 2 s). The party's tank takes 3 × a normal blow; anyone else in it 599 damage. It leaves 2 pools of burning slag (8 s).
When5 s into the fight, then every 9 s.
EnragedEvery 7.5 s.
TipThe tank turns the spew away from the others and lays its slag at the hall's edge, never by the bellows.
- Slag Lob
Circles 1.8 tiles round under 1/2/3 of the others (alone: you), 1.8 s ahead: 599 damage, and a pool of slag burning 6 s.
When7 s into the fight, then every 12 s.
EnragedEvery 10 s.
TipStep out of the circle, and out of the pool it leaves.
- Molten Roll
It coils and rolls down a lane 2.3 tiles wide and up to 11.3 tiles long at the one farthest from it, 1.6 s ahead: 599 damage; 3 pools of slag along it.
WhenFrom 50%, every 16 s.
EnragedEvery 13 s.
TipFar from it, watch for the lane: sidestep it.
- The Bellows
It crawls into the casting furnace and gorges for 10 s, healing 1.5% of its health a second. The two bellows' pedals breathe in turn, one every 1 s (9 breaths): someone on the lit pedal as it breathes is a stroke (4/6/7 strokes). Enough and the furnace scalds it out: stunned 5 s, +35% from every blow for 10 s. Too few and it bursts out gorged: the Slag Torrent sweeps the whole hall. Alone: 1 pedal, a breath every 1.5 s in 12 s (8 breaths).
WhenAt 75%, 50%, 25% of its health.
TipTwo run to the pedals, west and east; the tank takes the Slag Spawn off them; the healer tops everyone up before the gorge can end.
- Rage
It flushes red and rages: its normal blows come 1.3× as often, and all its blows are 15% harder.
WhenAt 20% of its health; it lasts to the end of the fight.
TipThe last part is the most dangerous: save your strong skills and potions for it, and dodging the marks matters more than ever.
Drops
Chest and signature (tap to show)
Boss Stone (Redpeak)DropOften
Fireweed health potionDrop× 1–2Always
Silver oreDrop× 3–6Always
TopazDrop× 1Often
SlagdropSignatureSeldom



The chest's table8 pieces · Sometimes
Cedar bowChestSometimes
Cedar staffChestSometimes
Cedar talismanChestSometimes
Drake-hide quiverChestSometimes
Mithril daggerChestSometimes
Mithril longswordChestSometimes
Mithril shieldChestSometimes
Mithril swordChestSometimes
Anvilsworn · Epic1 pieces · Sometimes
Anvilsworn HelmSet pieceSometimes
Anvilsworn Hunter · Epic1 pieces · Sometimes
Anvilsworn Hunter HoodSet pieceSometimes
Anvilsworn Sage · Epic1 pieces · Sometimes
Anvilsworn Sage HatSet pieceSometimes
Anvilsworn Saint · Epic1 pieces · Sometimes
Anvilsworn Saint HoodSet pieceSometimes
Anvilsworn Shade · Epic1 pieces · Sometimes
Anvilsworn Shade HoodSet pieceSometimes
Anvilsworn Swordmaster · Epic1 pieces · Sometimes
Anvilsworn Swordmaster HelmSet pieceSometimes
Quests
No quest asks for it.