Void-Born. The void dragon exists partially outside normal space. It can move through a space as narrow as 1 inch wide without squeezing. It can also see into the Ethereal Plane up to 30 feet.

Gravity’s Plaything. At the start of its turn, the dragon can choose to reverse its personal gravity until the start of its next turn, allowing it to hover upside down or cling to ceilings.

Void Camouflage. While motionless in dim light or darkness, the dragon has advantage on Dexterity (Stealth) checks.

Multiattack. The void dragon makes two attacks: one with its Bite and one with its Tail.

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target.
Hit: 10 (2d6 + 3) piercing damage plus 7 (2d6) necrotic damage.

Tail. Melee Weapon Attack: +6 to hit, reach 10 ft., one target.
Hit: 8 (1d10 + 3) bludgeoning damage.

Void Breath (Recharge 5–6). The dragon exhales a 15-foot cone of crackling purple void energy. Each creature in that area must make a DC 14 Dexterity saving throw, taking 21 (6d6) force damage on a failed save, or half as much on a successful one. A creature reduced to

Phase Slip. When the dragon would be hit by an attack, it can vanish into shadowed space, teleporting up to 15 feet to an unoccupied space it can see. The attack automatically misses.