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  The degenerate subterranean grimlocks were once human, but their worship of the Illithid's over generations of prowling The Underdark transformed them into blind, monstrous cannibals long ago.    

Debased Cultists

  The Empire of the Mind Flayers once spread across many worlds, enslaving countless races. Among those were human cultures whose high priests the mind flayers subverted using their insidious powers of thought control. Those leaders gradually turned the faiths of their followers toward the illithids, which they worshipped as blasphemous deities.   Over time, the rituals of these enslaved humans created fervent cannibal cults that regarded the brain eating of the mind flayers as a holy sacrament. The illithids commanded their worshipers to abduct other sentient creatures to be sacrificed. After the victims' brains had been consumed, the mind flayers gave the lifeless bodies to the cultists.    

Blind Hunters

  When the rule of the mind flayers crumbled, their cults faced constant warfare from their enemies, the same creatures that had once been their victims. The cults fled into The Underdark domains of their illithid gods. Over generations in that lightless realm, the cultists learned to rely on their other senses for survival. In time, their eyes withered away and eyelids sealed, leaving only covered eye sockets behind.   A grimlock's ears prick up at the faintest footfall or whisper echoing down stone passageways. It can speak in tones too low for most other humanoids to hear. The odors of sweat, flesh, and blood awaken its hunger, and it can track by such scents like a bloodhound. To enhance their senses, grimlocks leave trails of blood, piles of dung, or viscera of slain prey in places far from their lairs. When intruders pass through those areas, they carry the foul scents with them, warning the grimlocks of their approach.   For most creatures, blindness is an enormous hindrance. For a grimlock with its other heightened senses, sightlessness is a boon. A grimlock isn't fooled by visual illusions or misperceptions. It is fearless as it stalks prey.    

Endless War

  Grimlocks still venerate the mind flayers, serving them whenever possible. Grimlocks also recall the war in which they were driven underground. To them, it has never ended. They continue to return to the surface world to abduct captives for their illithid masters.

Basic Information

Dietary Needs and Habits


Additional Information

Perception and Sensory Capabilities

  • Blindsight 30ft or 10ft while Deafened (Blind beyond this radius), and 
  • Passive Perception 13.

Civilization and Culture

Major Language Groups and Dialects

A Grimlock by forgottenrealms.fandom
Humanoid (Grimlock)

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Cover image: A Grimlock by forgottenrealms.fandom

Grimlock CR: 1/4 (50XP)

Medium humanoid (grimlock), neutral evil
Armor Class: 11
Hit Points: 11 (2D8+2).
Speed: 30ft


16 +3


12 +1


12 +1


9 -1


8 -1


6 -2

Skills: Athletics +5, Perception +3, and Stealth +3.
Condition Immunities: Blinded.
Senses: Blindsight 30ft or 10ft while Deafened (Blind beyond this radius), and Passive Perception 13.
Languages: Undercommon

Blind Senses

The Grimlock can't use its Blindsight while Deafened and unable to Smell.  

Keen Hearing And Smell

The Grimlock has Advantage on Wisdom (Perception) Checks that rely on Hearing or smell.    

Stone Camouflage

The Grimlock has Advantage on Dexterity (Stealth) Checks made to Hide in Rocky terrain.


Spiked Bone Club

Melee Weapon Attack: +5 To Hit, Reach 5ft, One Target. Hit: 5 (1D4+3) Bludgeoning Damage Plus 2 (1D4) Piercing Damage.  


Author's Notes

The Original Article from The Monster Manual 5e By Wizards of The Coast (WoTc).

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