The Boilerlord
Boss · The Furnace Roots · band D, The Foundations

Where The Boilerlord waits
The Boilerlord holds the gates at depths 57,700, 58,300, 58,900, 59,500, 60,100 in The Furnace Roots, sharing the zone's 100-depth gate rhythm with The Stoker of Hell and Warden of the Firebox and The Great Bellows and The Slagfather and The Gaugewright.
What The Boilerlord is
The Boilerlord is a Golem: it swings a mace, and the body asks for Overwhelm, the elements instead of physical — and a second wind: a big one breaks into two. As a boss it wears the type's defences at 35%, carries no status of its own, and enrages below half health: it hits harder and moves faster.
The Boilerlord by the numbers
The card at each gate — health, damage per swing, armour and the modifiers it rolls — straight from the game's spawn table. On the floor the boss leads with 60% of the card's health and 60% of its damage, before the road's own pressure.
What those modifiers do
OF CHILLING DEATH- leaves a pool of frost where it falls
DENSE- takes 60% less from damage over TIME, and double from hits
OF THE EXECUTIONER- you recover half as much within 4.5 tiles of it
LUCKY- 15% of its blows land twice over
PIERCING- penetrates 25% of your resistances
THICK-SKINNED- Overwhelm and armor you ignore count at half
OF HINDERING- you move 30% slower within 4.5 tiles of it
DEADLY- +20% critical strike chance
ARMORED- Armour ×1.9, at the cost of 5% of its health
ETHEREAL- takes 60% less from HITS, and double from damage over time
OF ENDURANCE- gains an Endurance charge every second while hit recently: +15% physical reduction and +15% to the elements each, up to 3
EVASIVE- +22% chance to dodge your hits
MANGLING- +35% chance to cause bleeding
WITHERING- every blow leaves damage over time on you: 15% of the blow each second for 4 s
VAMPIRIC- heals 1.5% of its maximum health with every blow it lands
SUNDERING- every blow cuts your armor by 30% for 4 s
ENRAGED- builds 2 Rage with every blow it lands, up to 50; each point is 1% more damage
FIREPROOF- +75% fire resistance (capped at 75%)
OF HASTE- the pack within 4.5 tiles moves and swings 30% faster
Modifiers are rolled per depth and are the same for every player. Bosses always carry at least 3 and never a pace modifier (SWIFT, BRUTE), so a boss's swing rhythm is its own; of the seals only the walls — BLOODLESS, INERT, ASHEN, ETHEREAL, DENSE — ride a boss. The full list is in Enemy modifiers.
At its first gate The Boilerlord leads with 45,169,464,175 health, against 44,164,112,269 for the leader one floor above, and swings every 1.25s.
What a gate floor is
A gate is a floor like any other, with the boss leading its last pack. Nothing below it opens until the floor is cleared. A lost floor costs nothing; you can fight it again. How a floor is fought is under Combat.
Fight The Boilerlord — play free