Aura of Void Corruption. Any creature that starts its turn within 30 feet of the Voidwoken Devourer must make a DC 26 Constitution saving throw. On a failed save, the creature's maximum hit points are reduced by 2d10 until it finishes a long rest. This reduction is cumulative. Creatures immune to the poisoned condition are immune to this effect.

Corrosive Touch. Any creature that touches the Voidwoken Devourer or hits it with a melee attack while within 5 feet of it takes 4d10 necrotic damage. The Voidwoken Devourer regains a number of hit points equal to half the necrotic damage dealt (minimum of 1).

Innate Spellcasting (Psionics). The Voidwoken Devourer can innately cast the following spells, requiring no material components. Its spellcasting ability is Charisma (spell save DC 26).

• At will: detect thoughts, telekinesis
• 3/day each: dominate monster, plane shift (self only, to the Plane of Shadow or the Abyss)
• 1/day each: imprisonment, wish

Legendary Resistance (3/Day). If the Voidwoken Devourer fails a saving throw, it can choose to succeed instead.

Void-Touched Hide. The Voidwoken Devourer's natural armor is imbued with the corrupting energies of the Void, granting it its high Armor Class and damage resistances.

Void Nature. The Voidwoken Devourer doesn't need to breathe, eat or sleep.

Multiattack. The Voidwoken Devourer can use its Frightful Presence. It then makes three attacks: one with its Void Tendrils and two with its Enervating Claws.

Enervating Claws. Melee Weapon Attack: +18 to hit, reach 15 ft., one target. Hit: 25 (3d10 + 9) slashing damage plus 18 (4d8) necrotic damage. On a hit, the target must succeed on a DC 26 Constitution saving throw or have its Strength score reduced by 2d4. The target dies if its Strength is reduced to 0. This reduction lasts until the target finishes a long rest. The Voidwoken Devourer regains a number of hit points equal to half the necrotic damage dealt (minimum of 1).

Void Tendrils. Melee Weapon Attack: +18 to hit, reach 20 ft., one target. Hit: 30 (4d10 + 8) bludgeoning damage, and the target is grappled (escape DC 26). Until this grapple ends, the target is restrained and takes 14 (4d6) necrotic damage at the start of each of its turns. The Voidwoken Devourer regains a number of hit points equal to half the necrotic damage dealt (minimum of 1). The Voidwoken Devourer can grapple up to two Huge or smaller creatures at a time.

Frightful Presence. Each creature of the Voidwoken Devourer's choice that is within 120 feet of it and aware of it must succeed on a DC 26 Wisdom saving throw or become frightened for 1 minute. A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Void Rift (Recharge 5-6). The Voidwoken Devourer tears a hole in reality, creating a 30-foot radius sphere of swirling void energy centered on a point it can see within 120 feet. Each creature in that area must make a DC 26 Dexterity saving throw, taking 55 (10d10) necrotic damage on a failed save, or half as much damage on a successful one. The area becomes difficult terrain for 1 minute. At the start of each of the Voidwoken Devourer's turns while the rift persists, each creature within the rift takes 16 (3d10) necrotic damage. The Voidwoken Devourer regains a number of hit points equal to half the necrotic damage dealt by this effect (minimum of 1).

Void Backlash. When a creature hits the Voidwoken Devourer with a melee or ranged attack, the attacking creature must make a DC 26 Dexterity saving throw, taking 28 (8d6) necrotic damage on a failed save, or half as much damage on a successful one. For 1 minute after this reaction, the targer loses its immunity and/or resistance to necrotic damage and instead has vulnerability to necrotic damage. This vulnerability ends early if the Voidwoken Devourer uses this reaction again.

The Voidwoken Devourer can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The Voidwoken Devourer regains spent legendary actions at the start of its turn.

• Attack. The Voidwoken Devourer makes one Enervating Claws or Void Tendrils attack.
• Void Whisper. The Voidwoken Devourer targets one creature it can see within 120 feet and attempts to magically charm or frighten it (its choice). The target must succeed on a DC 26 Wisdom saving throw or be charmed or frightened for 1 minute. A charmed or frightened target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
• Shift Through Void (Costs 2 Actions). The Voidwoken Devourer magically teleports up to 60 feet to an unoccupied space it can see.

The Voidwoken Devourer can spend mystic action (3) points to take the following actions. It regains all spent mystic action points at the start of its turn.

• Void Lance (2 Points). The Voidwoken Devourer unleashes a focused beam of void energy at one creature it can see within 120 feet. The target must make a DC 26 Dexterity saving throw, taking 44 (8d10) necrotic damage on a failed save, or half as much damage on a successful one. On a failed save, the target is also pushed up to 20 feet away from the Voidwoken Devourer.
• Corrupting Gaze (1 Point). The Voidwoken Devourer focuses its gaze on one creature it can see within 60 feet. The target must succeed on a DC 26 Wisdom saving throw or have one random ability score reduced by 1d4. This reduction lasts until the target finishes a long rest. The Voidwoken Devourer can choose which ability score is affected if the target has already been affected by this action.
• Void Shield (3 Points). The Voidwoken Devourer surrounds itself with a shimmering barrier of void energy until the start of its next turn. While the shield is active, the Voidwoken Devourer gains a +5 bonus to its Armor Class and has advantage on saving throws against spells and other magical effects.