Monster Dossier

Ancient Sea Dragon

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

Level 17

Traits

rarecggargantuanamphibiousdragonwater

Rules & statistics

Monster Profile

Perception

30

Senses

  • Name
    darkvision
  • Type
    imprecise
    Name
    wavesense
    Range
    60

Languages

Languages
  • aquan
  • auran
  • celestial
  • common
  • draconic
  • elven

Skills

Acrobatics
32
Arcana
26
Athletics
33
Deception
25
Intimidation
27
Nature
28
Society
26
Stealth
32
Survival
26

Ability Mods

Str
8
Dex
7
Con
5
Int
3
Wis
5
Cha
4

Defenses

Ac
Std
41
Abilities
fed by metal
Saving Throws
Fort
29
Ref
32
Will
27
Hp
  • Hp
    350
Immunities
  • paralyzed
  • sleep

Speed

Abilities
  • water walk
Walk
50
Fly
140
Swim
70

Attacks

  • Range
    Melee
    Name
    jaws
    Attack
    34
    Traits
    • magical
    • reach
    Effects
    • hyponatremia
    Damage
    3d12+16 piercing plus hyponatremia
    Types
    • piercing
  • Range
    Melee
    Name
    claw
    Attack
    34
    Traits
    • agile
    • magical
    • reach
    Effects
    • Grab
    Damage
    3d10+16 slashing plus Grab
    Types
    • slashing
  • Range
    Melee
    Name
    tail
    Attack
    34
    Traits
    • magical
    • reach
    Effects
    • Grab
    Damage
    3d10+16 bludgeoning plus Grab
    Types
    • bludgeoning

Spellcasting

  • Type
    Innate
    Tradition
    arcane
    DC
    38
    Entry
    3
    Spells
    • Name
      endure elements
      Notes
      • self only
    5
    Spells
    • Name
      control water
    • Name
      create water
      Amount
      at will
    Constant
    2
    Spells
    • Name
      water walk

Abilities

Mid
  • Traits
    • aura
    • emotion
    • fear
    • mental
    Entries
    • 90 feet, 36 (page 305)
    Name
    Frightful Presence
  • Traits
    • aura
    • water
    Entries
    • 40 feet. Water in the aura that's also in the same body of water as the dragon is difficult terrain||3|terrain for Swimming creatures which don't have the water trait.
    Name
    Vortex
  • Activity
    Number
    1
    Unit
    reaction
    Traits
    • abjuration
    • arcane
    • water
    Entries
    • The dragon liquefies, turning entirely to water while maintaining their shape, for a split second. Against the triggering effect, they gain resistance 25 to fire and to all physical damage.
    Name
    Liquefy
    Trigger
    The dragon is targeted by a Strike or spell that could deal fire or physical damage to them
Bot
  • Activity
    Number
    2
    Unit
    action
    Traits
    • arcane
    • evocation
    • water
    Entries
    • The dragon shoots a ball of water that deals 18d6 bludgeoning damage in a 30-foot burst within 60 feet (38 basic Reflex save). All non-magical fire in the radius is extinguished. The dragon can't use Breath Weapon again for 1d4 rounds.
    Name
    Breath Weapon
  • Activity
    Number
    2
    Unit
    action
    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
  • 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+8 bludgeoning, 38 (page 305)
    Name
    Greater Constrict
  • Traits
    • water
    Entries
    • A living creature that takes damage from the sea dragon's jaws Strike must succeed at a 38 Fortitude save or become sickened 2 as a surge of excess water floods its body.
    Name
    Hyponatremia
  • Activity
    Number
    3
    Unit
    action
    Traits
    • arcane
    • evocation
    • manipulate
    • water
    Requirements
    The dragon is in a body of water at least as large as they are
    Frequency
    Unit
    minute
    Interval
    10
    Number
    1
    Entries
    • The dragon slams their body down, sending a towering wave outward. This wave deals 10d12 bludgeoning damage in a 90-foot emanation. Each creature in the area must attempt a 38 Reflex save. Structures and unattended objects in the area take the full amount of damage with no saving throw.
    • Type
      successDegree
      Entries
      Critical Success
      The creature takes no damage but is pushed 30 feet from the dragon.
      Success
      The creature takes half damage and is pushed 60 feet from the dragon.
      Failure
      The creature takes full damage, is pushed 120 feet from the dragon, and falls prone.
      Critical Failure
      As failure, but double damage.
    Name
    Tidal Wave

Background

Lore

No lore provided.