Crystalline Horror

Medium aberration, neutral evil

Armor Class 16 (natural armor)
Hit Points 60 (8d8 + 24)
Speed 30 ft.

19 (+4) 14 (+2) 16 (+3) 10 (+0) 12 (+1) 10 (+0)

Skills Perception +3, Stealth +4
Damage Resistances cold
Senses darkvision 60 ft., passive Perception 13
Challenge 3 (700 XP)

Special Traits

  • Crystal
  • Claws. The crystalline horror’s attacks are magical.
  • Magic Resistance. The crystalline horror has advantage on saving throws against spells and other magical effects.


  • Multiattack. The crystalline horror can make two attacks with its claws.
  • Claws. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) slashing damage.
  • Shard Spray (Recharge 6). The crystalline horror launches a spray of razor-sharp shards of glass from its body in a 30-foot cone. Each creature in that area must make a DC 13 Dexterity saving throw, taking 17 (5d6) piercing damage on a failed save, or half as much damage on a successful one.


  • Bend Light. The crystalline horror can refract natural light into a bright light that makes it harder to be hit by melee attacks. The crystalline horror adds 3 to its AC against one melee attack that would hit it. To do so, the crystalline horror must see the attack. This ability cannot be used in natural or magical darkness.


This humanoid creature seems to be made entirely of crystal and glass. It is human-sized, and its head sports no eyes, nose, ears, or mouth. Its body appears razor-sharp and jagged. Its hands end in wicked claws.

A crystalline horror is a weird, unnatural humanoid composed of crystal and glass. Sages believe it to be from one of the elemental planes, but in fact, the crystalline horror is a creature whose origins lie on the Material Plane. How it came to be remains speculation among many sages and scholars, though all agree it is, in fact, a living creature and not an automaton.

Section 15: Copyright Notice

Tome of Horrors © 2018, Frog God Games, LLC; Authors: Kevin Baase, Erica Balsley, John “Pexx” Barnhouse, Christopher Bishop, Casey Christofferson, Jim Collura, Andrea Costantini, Jayson ‘Rocky’ Gardner, Zach Glazar, Meghan Greene, Scott Greene, Lance Hawvermale, Travis Hawvermale, Ian S. Johnston, Bill Kenower, Patrick Lawinger, Rhiannon Louve, Ian McGarty, Edwin Nagy, James Patterson, Nathan Paul, Patrick N. Pilgrim, Clark Peterson, Anthony Pryor, Greg Ragland, Robert Schwalb, G. Scott Swift, Greg A. Vaughan, and Bill Webb