Adult Black Dragon

Stat block

Cha

19

Con

21

Dex

14

Int

14

Str

23

Wis

13

Speed

Fly: 80; Swim: 40; Walk: 40

Senses

blindsight 60 ft., darkvision 120 ft., passive Perception 21

Skills

Stealth: 7; Perception: 11

Actions

• Multiattack. The dragon makes three Rend attacks. It can replace one attack with a use of Spellcasting to cast Acid Arrow (level 3 version).
• Rend. Melee Attack Roll: +11, reach 10 ft. 13 (2d6 + 6) Slashing damage plus 4 (1d8) Acid damage.
• Acid Breath. Dexterity Saving Throw: DC 18, each creature in a 60-foot-long, 5-foot-wide Line. Failure: 54 (12d8) Acid damage. Success: Half damage.
• Spellcasting. The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting ability (spell save DC 17, +9 to hit with spell attacks): - **At Will:** Detect Magic, Fear, Acid Arrow - **1/Day Each:** Speak with Dead, Vitriolic Sphere

Hit dice

17d12 + 85

Languages

Common, Draconic

Armor detail

natural armor

Saving throws

Wisdom: 6; Dexterity: 7

Damage immunities

acid

Legendary actions

• Cloud of Insects. Dexterity Saving Throw: DC 17, one creature the dragon can see within 120 feet. Failure: 22 (4d10) Poison damage, and the target has Disadvantage on saving throws to maintain Concentration until the end of its next turn. Failure or Success: The dragon can't take this action again until the start of its next turn.
• Frightful Presence. The dragon uses Spellcasting to cast Fear. The dragon can't take this action again until the start of its next turn.
• Pounce. The dragon can move up to half its Speed, and it makes one Rend attack.

Special abilities

• Amphibious. The dragon can breathe air and water.
• Legendary Resistance (3/Day, or 4/Day in Lair). If the dragon fails a saving throw, it can choose to succeed instead.