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D&D · SRD 5.1 (5e, 2014)

Ancient Black Dragon (Chromatic) Gargantuan Dragon, Chaotic Evil

Armor Class
22 (natural armor)
Hit Points
367 (21d20 + 147)
Speed
40 ft., Fly 80 ft., Swim 40 ft.
STRDEXCONINTWISCHA
SCORE271425161519
MOD+8+2+7+3+2+4
SAVE+8+2+7+3+2+4
Saving Throws
Dex +9, Con +14, Wis +9, Cha +11
Skills
Perception +16, Stealth +9
Immunities
Acid
Senses
blindsight 60 ft., darkvision 120 ft.; Passive Perception 26
Languages
Common, Draconic
CR
21 (XP 33,000)

Traits

Amphibious. The dragon can breathe air and water.

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

Actions

Multiattack. The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 19 (2d10 + 8) Piercing damage plus 9 (2d8) Acid damage.

Claw. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) Slashing damage.

Tail. Melee Weapon Attack: +15 to hit, reach 20 ft., one target. Hit: 17 (2d8 + 8) Bludgeoning damage.

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 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.

Acid Breath (Recharge 5-6). 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

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 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.

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Includes material from the System Reference Document (SRD 5.2.1 / 5.1) by Wizards of the Coast, licensed under CC BY 4.0. Legal