Monster Dossier

Sea Serpent

Sea Serpent SEA SERPENT LAIRS While an underwater cave will do, sea serpents prefer to "build" lairs by sinking ships. A sea serpent might even create a...

Level 12

Traits

uncommonngargantuananimal

Rules & statistics

Monster Profile

Perception

22

Senses

  • Name
    darkvision

Skills

Acrobatics
18
Athletics
Std
26
To Swim
28
Stealth
28

Ability Mods

Str
8
Dex
4
Con
6
Int
-4
Wis
2
Cha
0

Defenses

Ac
35
Saving Throws
Fort
25
Ref
21
Will
21
Hp
  • Hp
    210

Speed

Walk
20
Swim
60

Attacks

  • Range
    Melee
    Name
    jaws
    Attack
    27
    Traits
    • reach
    Effects
    • Grab
    Damage
    3d10+14 piercing plus Grab
    Types
    • piercing
  • Range
    Melee
    Name
    tail
    Attack
    27
    Traits
    • agile
    • reach
    Effects
    • Grab
    Damage
    2d10+14 bludgeoning plus Grab
    Types
    • bludgeoning
  • Range
    Ranged
    Name
    water spout
    Attack
    25
    Traits
    • brutal
    • range increment
    • water
    Effects
    • sea serpent algae
    Damage
    2d6+12 bludgeoning plus sea serpent algae
    Types
    • bludgeoning

Abilities

Top
  • Traits
    • abjuration
    • primal
    Entries
    • A sea serpent automatically tries to counteract any detection, revelation, or scrying divination attempted against it, using its Stealth modifier for its counteract modifier.
    Name
    Undetectable
Bot
  • Activity
    Number
    1
    Unit
    action
    Traits
    • attack
    Entries
    • The sea serpent attempts to capsize an aquatic vessel of its size or smaller that it's adjacent to. It must succeed at an Athletics check with a DC of 35 or the pilot's Lore||Sailing Lore DC, whichever is higher.
    Name
    Capsize
  • Activity
    Number
    1
    Unit
    action
    Entries
    • 1d10+14 bludgeoning.
    Name
    Constrict
  • Type
    affliction
    Traits
    • incapacitation
    • poison
    DC
    34
    Saving Throw
    Fortitude
    Max Duration
    6 rounds
    Stages
    • Stage
      1
      Entry
      confused and, if flying, spends its first action each turn to descend 20 feet
      Duration
      1 round
    • Stage
      1
      Entry
      confused and, if flying, descends until reaching the ground or water below
      Duration
      1 round
    Name
    Sea Serpent Algae
  • Activity
    Number
    2
    Unit
    action
    Traits
    • attack
    • move
    Entries
    • The sea serpent extends the spines along its back and Swims or Stride||Strides. Each creature the serpent is adjacent to at any point during its movement takes 4d6+8 slashing damage (32 basic Reflex save).
    Name
    Spine Rake
  • Activity
    Number
    1
    Unit
    action
    Traits
    • attack
    Entries
    • Huge, 2d10+6 bludgeoning, Rupture 20.
    Name
    Swallow Whole

Background

Lore

Sea Serpent

SEA SERPENT LAIRS

While an underwater cave will do, sea serpents prefer to "build" lairs by sinking ships. A sea serpent might even create a massive underwater graveyard by crashing several ships in the same location and letting the debris stack up on the ocean floor.

These fabled beasts resemble massive snakes with long rows of finned spines down their back. Temperamental and territorial, sea serpents can capsize a boat with ease, and most won't hesitate to do so when hungry or threatened. Stories abound of aggrieved captains who spend their entire lives hunting down the elusive monster that sunk their ships and took their livelihoods. These hunts rely on rumors and glimpses of the beasts, as few survive the catastrophes wrought by sea serpents.

While many fishermen's tales paint sea serpents as divinely appointed guardians of the ocean or, alternately, as evil and demonic agents, the truth is that most sea serpents are simply very large beasts with a knack for avoiding magical detection.