Ancient Black Dragon
Gargantuan Dragon, chaotic evil
- Armor Class
- 22 (natural armor)
- Hit Points
- 367 (21d20+147)
- Speed
- walk 40 ft., fly 80 ft., swim 40 ft.
- Challenge Rating
- 21
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 27 (+8) | 14 (+2) | 25 (+7) | 16 (+3) | 15 (+2) | 19 (+4) |
- Damage Immunities
- acid
- Senses
- blindsight 60 ft., darkvision 120 ft., passive Perception 26
- Languages
- Common, Draconic
Special Abilities
The dragon can breathe air and water.
If the dragon fails a saving throw, it can choose to succeed instead.
Actions
The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.
Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 19 (2d10 + 8) piercing damage plus 9 (2d8) acid damage.
Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) slashing damage.
Melee Weapon Attack: +15 to hit, reach 20 ft., one target. Hit: 17 (2d8 + 8) bludgeoning damage.
Each creature of the dragon's choice that is within 120 feet of the dragon and aware of it must succeed on a DC 19 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.
The dragon exhales acid in a 90-foot line that is 10 feet wide. Each creature in that line must make a DC 22 Dexterity saving throw, taking 67 (15d8) acid damage on a failed save, or half as much damage on a successful one.
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.
The dragon makes a Wisdom (Perception) check.
The dragon makes a tail attack.
The dragon beats its wings. Each creature within 15 ft. of the dragon must succeed on a DC 23 Dexterity saving throw or take 15 (2d6 + 8) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.