ability_mods:
  cha_mod: 5
  con_mod: 6
  dex_mod: 5
  int_mod: 4
  str_mod: 8
  wis_mod: 5
ac: 39
ac_special: null
automatic_abilities: null
description: Murderous tyrants of marshes, swamps, bogs, and fens, black dragons terrorize
  their domains with intense fervor. Gleefully sadistic, they rule their fetid principalities
  from a deep cave or otherwise isolated part of the swamp with a mix of lightning-quick
  raids and subterfuge. Their hatred for other creatures is as acidic as their breath
  weapons, and they rarely tolerate even other dragons of their kind—except perhaps
  to mate or temporarily collaborate to take down a mutual enemy.
divine_spells: null
hp: 325
immunities:
- acid
- paralyzed
- sleep
innate_spells: []
items: null
languages:
- Common
- Draconic
- Goblin
- Jotun
- Orcish
level: 16
melee:
- action_cost: One Action
  damage:
    formula: 3d10+14 plus 2d6 acid and 2d6 persistent acid
    type: piercing
  name: jaws
  to_hit: 33
  traits:
  - acid
  - magical
  - reach 15 feet
- action_cost: One Action
  damage:
    formula: 3d8+14
    type: slashing
  name: claw
  to_hit: 33
  traits:
  - agile
  - magical
  - reach 10 feet
- action_cost: One Action
  damage:
    formula: 3d10+12
    type: bludgeoning
  name: tail
  to_hit: 31
  traits:
  - magical
  - reach 20 feet
- action_cost: One Action
  damage:
    formula: 2d10+12
    type: piercing
  name: horns
  to_hit: 31
  traits:
  - magical
  - reach 15 feet
name: Ancient Black Dragon
perception: 30
proactive_abilities:
- action_cost: Two Actions
  description: The dragon breathes a spray of acid that deals 17d6 acid damage in
    a 100-foot line (DC 39 basic Reflex save). It can't use Breath Weapon again for
    1d4 rounds.
  name: Breath Weapon
  traits:
  - acid
  - arcane
  - evocation
- action_cost: One Action
  description: '**Frequency** Once per day; **Effect** The dragon permanently befouls
    10 cubic feet of liquid within 90 feet. The liquid becomes undrinkable and unable
    to support water-breathing life. This destroys liquid magic or alchemical items
    if they''re of a lower level than the dragon (a creature can attempt a DC 35 Will
    save to protect liquids in its possession). This doesn''t affect liquids in a
    creature''s body.'
  name: Corrupt Water
  traits:
  - arcane
  - concentrate
  - necromancy
- action_cost: Two Actions
  description: The dragon makes two claw Strikes and one horns Strike in any order
    in any order.
  name: Draconic Frenzy
  traits: null
- description: The dragon recharges its Breath Weapon whenever it scores a critical
    hit with a Strike
  name: Draconic Momentum
  traits: null
ranged: null
resistances: null
saves:
  fort: 30
  ref: 27
  will: 29
saves_special:
  fort: null
  ref: null
  will: +1 status to all saves vs. magic
senses:
- darkvision
- scent (imprecise) 60 feet
skills:
  Acrobatics: 25
  Arcana: 26
  Athletics: 32
  Deception: 29
  Intimidation: 29
  Stealth: 27
skills_special: null
speed:
- amount: 60
  type: Land
- amount: 150
  type: Fly
- amount: 60
  type: Swim
spell_attack_to_hit: null
spell_dc: null
traits:
- Uncommon
- CE
- Huge
- Acid
- Amphibious
- Dragon
type: Creature