Monster Dossier

Ancient Underworld Dragon

Ancient Underworld Dragon is a fantasy monster entry from source B3.

Level 16

Traits

rarelegargantuandragonfire

Rules & statistics

Monster Profile

Perception

28

Senses

  • Name
    darkvision
  • Type
    imprecise
    Name
    scent
    Range
    60
  • Name
    smoke vision

Languages

Languages
  • common
  • draconic
  • ignan
  • terran
  • undercommon

Skills

Acrobatics
23
Arcana
25
Athletics
32
Crafting
29
Deception
27
Intimidation
29
Nature
24
Stealth
25
Survival
24

Ability Mods

Str
8
Dex
3
Con
6
Int
5
Wis
4
Cha
5

Defenses

Ac
39
Saving Throws
Fort
30
Ref
25
Will
28
Hp
  • Hp
    295
Immunities
  • fire
  • paralyzed
  • sleep

Speed

Walk
40
Burrow
60
Fly
80

Attacks

  • Range
    Melee
    Name
    jaws
    Attack
    32
    Traits
    • magical
    • reach
    Damage
    3d10+16 piercing plus 3d6 fire
    Types
    • fire
    • piercing
  • Range
    Melee
    Name
    claw
    Attack
    32
    Traits
    • agile
    • magical
    • reach
    Effects
    • adamantine claws
    • Grab
    Damage
    3d10+16 slashing plus adamantine claws and Grab
    Types
    • slashing
  • Range
    Melee
    Name
    tail
    Attack
    32
    Traits
    • magical
    • reach
    Effects
    • Grab
    Damage
    3d10+16 bludgeoning plus Grab
    Types
    • bludgeoning

Spellcasting

  • Type
    Innate
    Tradition
    arcane
    DC
    37
    Entry
    0
    Level
    8
    Spells
    • Name
      detect magic
    8
    Spells
    • Name
      continual flame
    • Name
      wall of fire

Abilities

Top
  • Entries
    • Smoke doesn't impair an underworld dragon's vision; they ignore the concealed condition from smoke.
    Name
    Smoke Vision
Mid
  • Traits
    • aura
    • emotion
    • fear
    • mental
    Entries
    • 90 feet, 35 (page 305)
    Name
    Frightful Presence
  • Traits
    • arcane
    • aura
    • evocation
    • fire
    Entries
    • 10 feet. Each creature that ends its turn in the aura must succeed at a 35 Fortitude saving throw or become fatigued while it remains in the aura.
    Name
    Sweltering Heat
Bot
  • Entries
    • The dragon's claws are infused with adamantine. Their claw Strike||Strikes ignore half the Hardness of any object hit.
    Name
    Adamantine Claws
  • Activity
    Number
    2
    Unit
    action
    Traits
    • arcane
    • evocation
    • fire
    Entries
    • The dragon breathes a blast of fire that explodes in a 30-foot burst within 60 feet, dealing 14d6 fire damage (39 basic Reflex save). Creatures that fail the save also take 3d6 persistent damage||persistent fire damage. The dragon can't use Breath Weapon again for 1d4 rounds.
    Name
    Breath Weapon
  • Entries
    • The dragon makes one claw Strike and one tail Strike in either order, each against the same target. If either Strike hits, the dragon automatically Grabs the target.
    Name
    Coiling Frenzy
    Activity
    Number
    2
    Unit
    action
  • Entries
    • The dragon recharges their Breath Weapon whenever they score a critical hit with a Strike.
    Name
    Draconic Momentum
  • Activity
    Number
    1
    Unit
    action
    Entries
    • 3d10+9 bludgeoning, 37 (page 305)
    Name
    Greater Constrict
  • Activity
    Number
    2
    Unit
    action
    Traits
    • arcane
    • evocation
    • fire
    Entries
    • The dragon plunges their body into the ground, Burrows up to their Speed, and then scorches the land within a 60-foot emanation.
    • Creatures underground or on the surface in the area take 8d6 fire damage (37 basic Fortitude save), and those who critically fail become enfeebled 1 for 1 minute.
    • Animate dreams (Bestiary 2 18)
    Name
    Scorch Earth

Background

Lore

No lore provided.