Sea Serpent, Shipbreaker

This devastating serpent is over 120 feet long and 15 feet thick. Its body scales are dark gray-brown, festooned with barnacles, seaweed, and other sea life. Its maw is the size of a large wagon, with teeth the size of greatswords.

Shipbreaker Sea Serpent CR 25

XP 1,640,000
CN Colossal dragon (aquatic)
Init +5; Senses darkvision 60 ft., low-light vision, scent; Perception +48


AC 31, touch 4, flat-footed 29 (+1 Dex, +1 dodge, +27 natural, -8 size)
hp 665 (38d12+380 plus 38)
Fort +33, Ref +24, Will +26
Immune paralysis and sleep, dragon traits


Speed 10 ft.; swim 40 ft.
Melee bite +43 (5d6+16/19-20 plus poison and grab)
Space 50 ft.; Reach 50 ft.
Special Attacks capsize, constrict (5d6+16), poison


Str 32, Dex 13, Con 30, Int 11, Wis 17, Cha 21
Base Atk +38; CMB +57 (+61 grapple); CMD 69 (can’t be tripped)
Feats Ability Focus (poison), Alertness, Blind-Fight, Cleave, Dodge, Endurance, Great Cleave, Great Fortitude, Greater Weapon Focus (bite), Improved Critical (bite), Improved Initiative, Improved Lightning Reflexes, Improved Natural Armor, Improved Natural Attack (bite), Iron Will, Lightning Reflexes, Power Attack, Swim-By AttackB, Toughness, Weapon Focus (bite)
Skills Bluff +26, Intimidate +46, Knowledge (nature) +23, Perception +48, Sense Motive +9, Stealth +26, Survival +44, Swim +59
SQ amphibious


Capsize (Ex)

A shipbreaker sea serpent can attempt to capsize a boat or ship by ramming it as a charge attack and making a CMB check. The DC of this check is 25, or the result of the captain’s Profession (sailor) check, whichever is higher. For each size category the ship is larger than the sea serpent’s size, the sea serpent takes a cumulative -10 penalty on this CMB check.

Poison (Ex)

Bite–injury; save Fort DC 41; frequency 1/round for 6 rounds; effect 2d4 Con; cure 2 consecutive saves. The save DC is Constitution-based.


Environment any aquatic
Organization solitary
Treasure 50% coins; double goods; standard items

The legendary shipbreaker is thought to be the largest of the sea serpents, a true behemoth that rules the seas. It is a fearless hunter that enjoys attacking the largest seagoing vessels and crushing them in its mighty coils. It is believed by many sailors and seafarers that the shipbreaker is a unique creature (i.e., that only one of these mighty beasts exists), and apparently (and thankfully) it seems to spend most of its time hibernating.

A shipbreaker attacks ships and huge-sized creatures as its primary prey. It ignores smaller creatures except as snacks, or if directly threatened by one. Its favorite tactic is to ambush a ship or approach it at speed, then wrap it in its coils and crush it. It then feasts on the sailors in the water at its leisure. The shipbreaker is most often sighted deep at sea, usually just before it approaches and breaks up a naval vessel into kindling.

It is unknown what language the shipbreaker speaks or understands, if any, since none have ever reported successfully speaking with it. A shipbreaker’s broad flat flippers allow it to slowly propel itself onto and across dry land.

Section 15: Copyright Notice

Shipbreaker 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