Sunlight Sensitivity. While in sunlight, the dragon has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

Shadow Stealth. While in darkness, the dragon can become invisible as a bonus action. It loses it invisibility it attacks, uses its Dragon's Breath ability or chooses to do so.

Living Shadow. While in darkness, the dragon has resistance to damage that isn't force, psychic, or radiant.

Frightful Presence. Each creature of the dragon's choice that is within 120 feet of the Dragon and aware of it must succeed on a DC 16 Wisdom saving throw or become Frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, Ending the Effect on itself on a success. If a creature's saving throw is successful or the Effect ends for it, the creature is immune to the dragon's Frightful Presence for the next 24 hours.

Multiattack. The dragon makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 17 (2d10 + 6) piercing damage plus 3 (1d6) fire damage.

Claw. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6) slashing damage.

Fire Breath (Recharge 5–6). The dragon exhales fire in a 30-foot cone. Each creature in that area must make a DC 17 Dexterity saving throw, taking 56 (16d6) fire damage on a failed save, or half as much damage on a successful one.

Darkness Aura(Once per turn): The Dragon beats its wings and exhales dark magic. Each torch, small fire or objects cast by spells such as light in a 30ft radius of the dragon are either put out or dispelled.

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