Medium Construct, neutral evil
Armor Class 19 (natural)
Hit Points 43 (5d8+20)
Speed fly +30, walk +0
Challenge 3
Skills perception -1
Damage Immunities necrotic, poison, psychic
Condition Immunities blinded, charmed, deafened, exhaustion, frightened, paralyzed, petrified, poisoned, prone
Senses darkvision 60', passive Perception 9
Languages understands Void Speech but can't speak
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 ft. of it must make DC 13 Cha save or take 2 (1d4) necrotic. The Void constructor can choose for a creature it is grappling to be immune to the Tainted Auras of all Void constructors.
Multiattack. Two Slam attacks.
Slam. Melee Weapon Attack: +5 to hit, 5 ft., one target, 10 (2d6+3) bludgeoning damage.
Tentacles. Melee Weapon Attack: +5 to hit, 10 ft., one target, 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.
Source: Tome of Beasts 3 · OGL/Open