Basic Stats
- Size/Type: Large Dragon
- Alignment: Chaotic Evil
- Armor Class: 19 (natural armor)
- Hit Points: 212 (17d10 + 119)
- Speed: 40 ft., fly 80 ft.
Ability Scores
- Strength: 22 (+6)
- Dexterity: 14 (+2)
- Constitution: 24 (+7)
- Intelligence: 15 (+2)
- Wisdom: 13 (+1)
- Charisma: 18 (+4)
Saving Throws
- Dexterity: +7
- Constitution: +12
- Wisdom: +6
- Charisma: +9
Skills
- Intimidation: +9
- Perception: +11
Damage Immunities
- Fire
- Necrotic
Senses
- Darkvision 120 ft., Blindsight 30 ft., Passive Perception 21
Languages
- Common, Draconic, Abyssal
Challenge Rating
- 17 (18,000 XP)
Traits
- Legendary Resistance (3/Day): If the dragon fails a saving throw, it can choose to succeed instead.
- Corrupted Resilience: The dragon has resistance to acid and poison damage due to its dark magical corruption.
Actions
- Multiattack: The dragon makes three attacks: one with its bite and two with its claws.
- Bite: Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit: 17 (2d10 + 6) piercing damage plus 14 (4d6) necrotic damage.
- Claw: Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6) slashing damage.
- Tail: Melee Weapon Attack: +11 to hit, reach 15 ft., one target. Hit: 15 (2d8 + 6) bludgeoning damage.
- Necrotic Fire Breath (Recharge 5-6): The dragon exhales a blast of necrotic fire in a 60-foot cone. Each creature in that area must make a DC 19 Dexterity saving throw, taking 63 (18d6) fire damage and 21 (6d6) necrotic damage on a failed save, or half as much of each type on a successful one.
- Lava Corruption: The dragon touches a creature within 5 feet, dealing 21 (6d6) fire damage and 14 (4d6) necrotic damage. The target must succeed on a DC 19 Constitution saving throw or be poisoned for 1 minute. A poisoned creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Legendary Actions
The dragon 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 dragon regains spent legendary actions at the start of its turn.
- Detect: The dragon makes a Wisdom (Perception) check.
- Tail Attack: The dragon makes a tail attack.
- Wing Attack (Costs 2 Actions): The dragon beats its wings. Each creature within 15 feet of the dragon must succeed on a DC 19 Dexterity saving throw or take 13 (2d6 + 6) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.
Special Abilities
- Magma Infusion: The dragon’s attacks deal an extra 7 (2d6) fire damage while it is on volcanic or molten terrain, and it has resistance to bludgeoning damage from nonmagical attacks in such areas.
- Dark Magic Aura: A creature that starts its turn within 10 feet of the dragon takes 7 (2d6) necrotic damage, and the dragon has advantage on saving throws against being charmed or frightened.