Obsidian Minotaur

Large construct, neutral

Armor Class 16 (natural armor)
Hit Points 76 (8d10 + 32)
Speed 30 ft.

21 (+5) 10 (+0) 18 (+4) 3 (-4) 11 (+0) 1 (-5)

Damage Immunities acid, fire, poison, psychic; bludgeoning, piercing, and slashing from nonmagical weapons that aren’t adamantine
Condition Immunities charmed, exhaustion, frightened, paralyzed, petrified, poisoned
Senses darkvision 60 ft., passive Perception 10
Languages understands the languages of its creator but can’t speak
Challenge 8 (3,900 XP)

Special Traits

  • Charge. If the obsidian minotaur moves at least 10 feet straight toward a target and then hits it with a gore attack on the same turn, the target takes an extra 9 (2d8) piercing damage. If the target is a creature, it must succeed on a DC 16 Strength saving throw or be pushed up to 10 feet away and knocked prone.
  • Immutable Form. The minotaur is immune to any spell or effect that would alter its form.
  • Magic Resistance. The minotaur has advantage on saving throws against spells and other magic effects.
  • Magic Weapons. The minotaur’s weapon attacks are magical.


  • Multiattack. The obsidian minotaur makes one gore attack and two claw attacks.
  • Gore. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) piercing damage plus 7 (2d6) fire damage.
  • Claw. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 12 (2d6 + 5) slashing damage plus 7 (2d6) fire damage.
  • Burning Breath (Recharge 5-6). An obsidian minotaur expels a cloud of superheated gas that fills a 10-foot cube adjacent to it.. The gas fades after the end of the minotaur’s next turn. Creatures who enter the area or start their turn there must make a DC 16 Constitution saving throw. On a failed saving throw, the target takes 31 (9d6) fire damage and it is poisoned for 1 minute. On a successful saving throw, the target takes half the damage and is not poisoned.


This creature appears as a powerfully constructed minotaur, twice the size of a normal human and carved of obsidian. Its hands end in slightly oversized claws, and its feet are splayed hooves. Small pinpoints of bluish light can be seen in its eyes.

The obsidian minotaur is often employed by spellcasters as a guardian or killer and can be found performing such tasks. When employed as an assassin, the obsidian minotaur is quite effective, first striking fear into the heart of its opponent and then slaying it with no thought or consequence.

An obsidian minotaur stands 12 feet tall and weighs roughly 2,000 pounds.

As a guardian, the obsidian minotaur activates when trespassers enter an area it is programmed to protect. As an assassin, it actively hunts down the targeted victim. The creature attacks with its powerful claws, slashing and ripping its opponent’s flesh. Against powerful foes, it employs its breath weapon.

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

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