Sea Dragon
Approaching sinuously through the depths is a scaled, green, serpentine creature, its huge body somewhat reminiscent of the old stories of dragons.

Sea Dragon (CR 8; XP 4,800)
N Huge animal (aquatic)
Init +1; Senses blindsight 120 ft., low-light vision; Perception +23
Defense
AC 18, touch 9, flat-footed 17
(+1 Dex, +9 natural, -2 size)
hp 150 (12d8+96)
Fort +15, Ref +9, Will +6
Offense
Speed swim 40 ft.
Melee bite +16 (2d8+8 plus grab), tail slap +11 (2d6+12)
Space 15 ft.; Reach 10 ft. (15 ft. with tail slap)
Special Attacks swallow whole (3d6+8 bludgeoning, AC 14, hp 13)
Statistics
Str 26, Dex 13, Con 24, Int 2, Wis 14, Cha 6
Base Atk +9; CMB 19 (+23 grapple); CMD 30 (34 vs. trip)
Feats Combat Reflexes, Skill Focus (Perception), Toughness, Vital Strike, Weapon Focus (bite, tail slap)
Skills Perception +23, Swim +16
Ecology
Environment aquatic
Organization solitary
Treasure none

The Far East races call them Ryugo, the cliff-dwelling northerners Radahag, and the southern sailors out of desert ports Tananeen, all apply to the same sinuous king of the sea. Widespread where true dragons are rare, semi-intelligent where dragons are crafty, the name ‘sea dragon’ is an appellation in the Common tongue to a species of aquatic pseudo-reptile known for its voracity and territorial behavior. Superficially resembling the draconic hyper-reptiles, sea dragons roam their claims in search of food, driving other predators away. They do not care for nor collect treasure, another difference between them and true dragons. They do not typically attack large ships, but will readily attack small boats, if only with the misconception that one is a shallow-swimming porpoise, one of its favorite foods. They seem to have a form of sonar, like whales, that functions as well as blindsight.

Aquatic races will sometimes gather groups of heroes to hunt down a sea dragon, much as land peoples do. Some of these cultures make armor and weapons from its body parts, martial tools passed down through clans and martial cadres. Sea dragons instinctively avoid those dragons that live in large bodies of water (such as brine dragons and dragon turtles) and dare not tangle with the likes of krakens and scyllas.

Sea Dragon Companions

  • Starting Stats: Size Medium; Speed Swim 30 ft.; AC +2 natural armor; Attack bite (1d8); Ability Scores Str 12, Dex 17, Con 10, Int 2, Wis 12, Cha 6
  • 7th level Advancement: Size Large; Speed +10 ft.; AC +2 natural armor; Attack bite (2d6), tail slap (1d8); Ability Scores Str +8, Dex -2, Con +4; SQ grab (bite)

On Porphyra
Loch Braig in the Holdfast of the Celestial Parishes is home to a particularly vicious sea dragon that is called Naitaka. Locals who travel the waters of Loch Braig often carry small animals such as foxes or goats to drop into the water to appease the sea dragon.