The Labyrinth Colossus
Armor Class 18 (natural armor)
Hit Points 270 (20d20+60)
Speed 20 ft.
Saving Throws Con +7, Wis +6
Skills Stealth +2, Perception +6
Damage Resistances bludgeoning from nonmagical attacks; piercing from nonmagical attacks; slashing from nonmagical attacks
Damage Immunities poison, necrotic
Condition Immunities poisoned
Senses darkvision 60 ft., passive Perception 14
Languages Common
Challenge 12 (8,400 XP) Proficiency Bonus +4
Actions
Legendary Actions
The Labyrinth Colossus can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn. The creature regains spent legendary actions at the start of its turn.
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Lore & Description
Appearance
A colossal undead titan, its form is a living heartbeat of bone. Its entire frame is a labyrinth of ribs, femurs, and spun bone corridors that twist and re-knit themselves with each tread. The surface of its bones resembles ash-white ivory, etched with dark mineral veins that glow faintly when it shifts the maze. Gaps in its skull resemble archways, and the inner cavities glow with an eerie green light where the marrow would be. When it moves, the corridors behind it sigh like a shipโs hull, and the sound of distant chains echoes through the bone-work as if other souls are trapped within.
Behavior & Origins
Born from a necromancer's failed attempt to bind a cityโs memory to a single body, the Labyrinth Colossus is a walking maze of bone that feeds on fear and confusion. It does not simply kill; it ensnares. Those who wander into its bone-woven corridors must navigate shifting walls, alarms carved into the bone, and echoes of past victims. The Colossus is drawn to catacombs and ancient crypts, where the bones of long-dead races curl into ever-changing paths. It seeks to trap intruders not just by brute force but by starving them of direction, leaving them to wander until they forget their own purpose or starve of hope. Adventurers who defeat it often recover their bearings only after days of being lost in the mazeโs echoing corridors.