Voidborne Construct

Voidborn Resilience. When reduced to 0 hit points, the construct collapses into a swirling mass of Void energy. At the start of its next turn, it makes a Constitution saving throw (DC 14). On a success, it regains 20 hit points and continues fighting. This can occur only once per encounter.

Corruption Aura. The Voidborne Construct emits an aura of dark energy in a 10-foot radius. Creatures that start their turn in the aura must succeed on a DC 14 Constitution saving throw or take 7 (2d6) necrotic damage and have disadvantage on their next attack roll. Creatures resistant to necrotic damage automatically succeed on the saving throw.

Multiattack. The construct makes two melee attacks.

Void-Claw. Melee Weapon Attack: +7 to hit, reach 10 ft., one target.
Hit: 14 (2d8 + 4) slashing damage plus 7 (2d6) necrotic damage. If the target is a creature, it must succeed on a DC 14 Constitution saving throw or its speed is reduced by 10 feet until the end of its next turn.

Shadowbolt. (Recharge 4-6). Ranged Spell Attack: +6 to hit, range 60 ft., one target.
Hit: 18 (4d8) necrotic damage. On a hit, the target must make a DC 14 Dexterity saving throw or become surrounded by spectral tendrils of Void energy. While surrounded, the target has disadvantage on Dexterity saving throws and attack rolls until the end of its next turn.

Shadow Step (Recharge 5-6). As a bonus action in dim light or darkness, the construct can teleport up to 40 feet to an unoccupied space it can see. The area it teleports to becomes filled with a magical darkness (as the Darkness spell, no concentration required) that lasts until the end of the construct's next turn.

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