Gorthulon

Large

Undead

CR 6

neutral evil

Gorthulon

Bonebound Tyrant

Gorthulon is an awful fusion of ancient apex predator and necromantic artifice: a towering, fossil-stitched tyrannosaur animated by a cruel elven necromancer and surrounded by clattering, ravenous raptor thralls. Its jaws drip a cold necrotic ooze and a faint chill of death hangs about its flanks; the ground itself seems to recoil when it breathes. On the battlefield Gorthulon is both siege engine and living undead aura, trampling foes under massive feet while its rider directs each devastating bite to the enemy's most vulnerable moments.

Stat block

Armour

13

natural armor and bolted plating

Hit points

110

13d10+39

Speed

50ft

Challenge

6

2,300 XP

STR

20

+5

DEX

10

+0

CON

16

+3

INT

2

-4

WIS

8

-1

CHA

4

-3

Saving throws

CON +6

Skills

Perception +2

Resistances

necrotic

Damage immunities

poison, psychic

Senses

darkvision 60 ft., passive Perception 12

Languages

understands Common but can't speak

Actions

Multiattack. The tyrant makes two attacks: one with its Bite and one with its Tail Sweep.

Bite. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 18 (3d6+7) piercing damage plus 3 (1d6) necrotic damage.

Tail Sweep. Melee Weapon Attack: +8 to hit, reach 15 ft., one target. Hit: 14 (2d6+7) bludgeoning damage plus 3 (1d6) necrotic damage.

Lore

Gorthulon was first raised by a cabal of exile necromancers who longed to reforge primordial violence into a controllable weapon. They exhumed a titanic theropod skeleton from a sinkrock pit and grafted it with iron, bone spikes and silvered runes; a single, singular necromancer bound the last spark of will into the carcass, forging the first Bonebound Tyrant. Stories in the borderlands speak of the ritual site — the Cradle of Scalebone — now stained with the residue of failed bindings and the screaming echoes of the first thralls. Today, odd warbands and cruel warlords purchase or steal Gorthulons to terrorize frontier towns. One infamous practitioner, the elf necromancer Ilthir Vossan of the Midnight Sepulchers, taught the creature to accept riders and to link its regeneration to his life force, allowing the tyrant to shrug off ordinary wounds so long as its master remains hale. Folklore warns that if the necromancer is felled the tyrant becomes a slow, unraveling thing — still dangerous but losing the eerie resilience that once made it unstoppable. Scholars at the Morrowgate Library debate whether the raptor thralls that accompany Gorthulon are raised from local kills or are bred in hidden pits to be wired into the tyrant's hunting pack.

Appearance

Gorthulon stands roughly as tall as a two-story doorway and twice as long as a longhouse table. Its flesh is reanimated and patchworked: strips of desiccated hide are sewn to exposed vertebrae with copper wire and rune-stitched sinew, while plates of fossilized armor are bolted along its flank. The skull is largely intact but the jaw hinge shows iron struts, and the teeth are darkened with necrotic stain. A shallow, pulsing runeword is inlaid along the spine and down to a reinforced saddle anchored over fused ribs — the saddle is a cage of bent bone and steel designed to hold a rider in violent charge. Bands of charred ligature and talon hooks hold hunks of flayed hide that snap in the wind. The tail ends in a spur of fused vertebrae and jagged metal, useful for sweeps that can topple foes. For scale: a human stands barely to the tyrant's knee; an average door reaches its mid-flank. Textures: rough, papery desiccated skin; slick, necrotic exudate around the mouth; polished iron and dull fossil bone bolted in places. Little motes of black ash drift off its hide whenever the necromancer channels life into it.

Made with the free LoreKeeper Monster Generator · D&D 5e-compatible stat block · Free to use at your table · Licence

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