Sea Serpent, Fanged

This serpent is 12 to 15 feet long and 5 feet thick. Its body scales are thickened and hardened, which slows it somewhat in water but provides good protection. The serpent’s most outstanding features, however, are the rows of long, sharp teeth that fill its mouth. It has large, lidless red eyes with white pupils.

Fanged Sea Serpent CR 6

XP 2,400
N Large dragon (aquatic)
Init +1; Senses darkvision 60 ft., low-light vision, scent; Perception +9


AC 24, touch 10, flat-footed 23 (+1 Dex, +14 natural, -1 size)
hp 76 (8d12+24)
Fort +9, Ref +7, Will +6
Immune paralysis and sleep, dragon traits


Speed swim 30 ft.
Melee bite +12 (1d8+6 plus poison)
Space 10 ft.; Reach 5 ft.
Special Attacks constrict (1d8+6), poison


Str 18, Dex 13, Con 16, Int 5, Wis 11, Cha 6
Base Atk +8; CMB +13; CMD 24 (can’t be tripped)
Feats Cleave, Great Cleave, Power Attack, Swim-By AttackB, Weapon Focus (bite)
Skills Perception +9, Stealth +6, Survival +9, Swim +21


Poison (Ex)

Bite–injury; save Fort DC 17; frequency 1/round for 6 rounds; effect 1d4 Con; cure 2 consecutive saves. The save DC is Constitution-based.


Environment any aquatic
Organization solitary, pair or swarm (3-20)
Treasure none

The fanged sea serpent is a vicious predator of the seas feared for its tendency to travel in packs and swarm over creatures much larger than itself. Fanged sea serpents are nomadic, traveling with ocean currents. They prefer to hunt in groups, which they can surround and attack from all sides. Fanged sea serpents have been known to attack their own kind, but only when starving.

Fanged sea serpents on their own usually live on large fish, and avoids confronting intelligent opposition unless they believe their victims to be helpless. However, when they are in groups, they become much more aggressive, and attack creatures much larger than themselves. They prefer to use swarm tactics, surrounding their target and attacking simultaneously from all directions; in the water, where they can also attack from above and below, few marine creatures can stand up to a prolonged assault.

Section 15: Copyright Notice

Fanged Sea Serpent from the Tome of Horrors Complete, Copyright 2011, Necromancer Games, Inc., published and distributed by Frog God Games; Authors Scott Greene and Patrick Lawinger.

scroll to top