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From Pathfinder Lost Omens Draconic Codex, which isn't enabled.

Brine Dragon (Adult)

CREATURE 12
LARGEAQUATICDRAGONELEMENTALPRIMALWATER
Perception +22; darkvision; (+24 to Sense Motive); aquatic echolocation 120 feet
Languages Common, Draconic, Thalassic
Skills Acrobatics +20, Athletics +25, Deception +22, Diplomacy +25, Intimidation +25, Nature +22, Settlement Lore (one settlement the dragon controls) +22, Society +22, Stealth +20
Str +7, Dex +4, Con +5, Int +4, Wis +4, Cha +5
Aquatic Echolocation

A brine dragon can use their hearing as a precise sense at the listed range, but only underwater.

AC 32; Fort +25, Ref +22, Will +20; +2 status to all saves vs. primal
HP 270; Immunities paralyzed, sleep, clumsy, controlled; Resistances acid 10, force 10
+2 Status to All Saves Vs. Primal
+2 to Sense Motive
Regent's Glower (emotion, fear, mental, primal)
Trigger The dragon is critically hit with a melee attack
Effect The dragon focuses their weighty gaze upon their assailant, filling their foe with dread. The triggering creature takes 6d6 mental damage with a DC 29 basic Will save. Any creature who fails the save also becomes Frightened 1 (Frightened 2 on a critical failure).
Speed 30 feet, fly 120 feet, swim 150 feet
Melee Jaws +26 (magical, reach 10, unarmed), Damage 3d8+13 piercing plus Benthic Bite
Melee Claw +26 (agile, magical, unarmed), Damage 3d6+13 slashing
Melee Tail +24 (magical, reach 15, unarmed), Damage 3d10+13 bludgeoning
Ranged Caustic Spit +24 (acid, range increment 60 feet), Damage 3d10+6 acid
Bathygenic Barrage (primal)
Frequency once per day
Effect The dragon uses Pressurized Pool three times. None of the bursts can overlap.
Benthic Bite (primal)

A creature who takes damage from a brine dragon's jaws Strike must succeed at a DC 29 Fortitude save or be Enfeebled 2 for 1 round.

Crushing Breath (primal)

The dragon spews a 80-foot line of pressurized water that deals 13d6 bludgeoning damage with a DC 32 basic Reflex save. A creature that fails the save is also Clumsy 1 (Clumsy 2 on a critical failure) for 1 minute. The dragon can't use Crushing Breath again for 1d4 rounds.

Draconic Frenzy

The dragon makes two claw Strikes and one tail Strike in any order.

Draconic Momentum

When the dragon scores a critical hit with a Strike, they recharge Crushing Breath.

Pressurized Pool (primal)

The dragon expels a 10-foot burst of pressurized water within 120 feet that lasts for 1 minute. A creature other than a brine dragon that enters or begins their turn within a burst must succeed at a DC 32 Fortitude save or become Encumbered until the beginning of their next turn.

Tidal Surge (primal)

The dragon sweeps their wings, creating a 30-foot cone of buffeting water that deals 8d8 bludgeoning damage with a DC 32 basic Fortitude save. Each unattended object and each creature that fails the save is also pushed away from the dragon 10 feet (20 feet on a critical failure) and is knocked Prone. The dragon can't use Tidal Surge again for 1d4 rounds.

Pathfinder Lost Omens Draconic CodexORC