Void Constructor

Medium construct, neutral evil

Armor Class 19 (natural armor)
Hit Points 43 (5d8 + 20)
Speed 0 ft., fly 30 ft. (hover)

16 (+3) 12 (+1) 18 (+4) 6 (–2) 8 (–1) 3 (–4)

Damage Immunities necrotic, poison, psychic
Condition Immunities blinded, charmed, deafened, exhaustion, frightened, paralyzed, petrified, poisoned, prone
Senses darkvision 60 ft., passive Perception 9
Languages understands Void Speech but can’t speak
Challenge 3 (700 XP)
Proficiency Bonus +2


  • Mobile Grappler. While grappling a creature, the constructor can move at its full speed, carrying the grappled creature along with it.
  • Tainted Aura. A Void constructor that has completed a Void henge gains necrotic energy while within 1 mile of the henge. At the start of each of the Void constructor’s turns, each creature within 10 feet of it must succeed on a DC 13 Charisma saving throw or take 2 (1d4) necrotic damage. The Void constructor can choose for a creature it is grappling to be immune to the Tainted Auras of all Void constructors.


  • Multiattack. The Void constructor makes two Slam attacks.
  • Slam. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) bludgeoning damage.
  • Tentacles. Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 13 (4d4 + 3) bludgeoning damage, and the target is grappled (escape DC 13). Until this grapple ends, the constructor can’t use its tentacles on another target.


This metal cephalopod has cross-shaped eyes and metallic tentacles. It emits a low hum and the scent of burning wheat fields.

Void constructors exist to build gates to other planes, allowing creatures from those planes to emerge and wreck havoc.

Nocturnal Builders. Void constructors work to build henges (see Void Henge sidebar) at night. Constructors build henges out of available natural materials, like stone or wood.

Empowered Servitors. When the Void henge is complete, the participating Void constructors gain an aura that helps them subdue their quarry. They then seek out suitable sacrifices for the henge.

Section 15: Copyright Notice

Tome of Beasts 3 © 2022 Open Design LLC; Authors: Eytan Bernstein, Celeste Conowitch, Benjamin L. Eastman, Robert Fairbanks, Scott Gable, Basheer Ghouse, Richard Green, Jeremy Hochhalter, Jeff Lee, Christopher Lockey, Sarah Madsen, Ben Mcfarland, Jonathan Miley, Kelly Pawlik, Sebastian Rombach, Chelsea Steverson, Brian Suskind, Mike Welham

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