The Threefold Maw
Boss · The Carrion Mire · band C, The Nine Circles

Where The Threefold Maw waits
The Threefold Maw holds the gates at depths 9,600, 9,900, 10,200, 10,500, 10,800, 11,100 and onward in The Carrion Mire, sharing the zone's 100-depth gate rhythm with Ciacco the Swollen and The Sleet Warden.
What The Threefold Maw is
The Threefold Maw is a Wight: it swings an axe, and the body asks for burst damage — it heals as it fights. 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 Threefold Maw 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
ROTPROOF- +75% chaos resistance (capped at 75%)
DENSE- takes 60% less from damage over TIME, and double from hits
BURNING- +35% ignite chance; a quarter of its physical damage becomes fire
LUCKY- 15% of its blows land twice over
PIERCING- penetrates 25% of your resistances
ARMORED- Armour ×1.9, at the cost of 5% of its health
FROSTBOUND- +75% cold resistance (capped at 75%)
SUNDERING- every blow cuts your armor by 30% for 4 s
WITHERING- every blow leaves damage over time on you: 15% of the blow each second for 4 s
OF THE EXECUTIONER- you recover half as much within 4.5 tiles of it
VAMPIRIC- heals 1.5% of its maximum health with every blow it lands
RETALIATING- strikes back at once when one blow takes more than 8% of its health and you stand within 2.5 tiles
OF POWER- gains a Power charge on every hit it lands: +200% critical chance each, up to 3
SHOCKING- +35% shock chance; a quarter of its physical damage becomes lightning
CHILLING- Turns 30% of its physical damage into cold
EXPOSING- every blow cuts your resistances by 15 for 4 s
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 Threefold Maw leads with 1,089,152,924 health, against 822,737,072 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 Threefold Maw — play free