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From Pathfinder #200: Seven Dooms for Sandpoint, which isn't enabled.

Scarhorn

CREATURE 14
UNIQUELARGEACIDAMPHIBIOUSCHAOTICDRAGONEVIL

Female old black dragon

Perception +24; darkvision, scent (imprecise) 60 feet
Languages Aklo, Common, Draconic, Goblin, Jotun, Thalassic, Thassilonian, Varisian
Skills Acrobatics +22, Arcana +27, Athletics +27, Deception +26, Intimidation +26, Stealth +24, Thassilon Lore +27
Str +7, Dex +4, Con +6, Int +5, Wis +4, Cha +4
AC 36; Fort +28, Ref +22, Will +24; +1 status to all saves vs. magic
HP 275; Immunities acid, paralyzed, sleep
+1 Status to All Saves vs. Magic
Frightful Presence (aura, emotion, fear, mental)

90 feet. DC 31 Will

A creature that first enters the area must attempt a Will save.

Regardless of the result of the saving throw, the creature is temporarily immune to this monster's Frightful Presence for 1 minute.

Critical Success The creature is unaffected by the presence.

Success The creature is Frightened 1.

Failure The creature is Frightened 2.

Critical Failure The creature is Frightened 4.

Tail Lash
Trigger A creature within reach of the dragon's tail takes an action to Strike or attempt a skill check
Effect The dragon Strikes with its tail at the triggering creature at a -2 penalty. If it hits, the creature takes a -2 circumstance penalty to the triggering roll.

Effect: Tail Lash

Speed 50 feet, fly 120 feet, swim 50 feet
Melee Jaws +29 (acid, magical, reach 10, unarmed), Damage 3d10+13 piercing plus 2d6 acid
Melee Claw +29 (agile, magical, unarmed), Damage 3d8+13 slashing
Melee Tail +27 (magical, reach 15), Damage 3d10+11 bludgeoning
Melee Horns +27 (magical, reach 10), Damage 2d6+11 piercing
Arcane Prepared Spells DC 34, attack +26; 6th Dispel Magic, Dominate, Scrying; 5th Control Water, Mariner's Curse, Truespeech; 4th Mirage, Suggestion, Translocate; 3rd Bind Undead, Locate, Shrink Item; 2nd Humanoid Form, Telekinetic Maneuver, Translate; 1st Alarm, Charm, Sure Strike; Cantrips (7th) Ghost Sound, Light, Read Aura, Shield, Telekinetic Hand
Arcane Innate Spells DC 34, attack +26; 2nd Darkness (At Will)
Breath Weapon (acid, arcane)

Scarhorn breathes a spray of acid that deals 15d6 acid damage in an 80-foot line (DC 34 basic Reflex save). She can't use Breath Weapon again for 1d4 rounds.

Corrupt Water (arcane, concentrate)
Frequency Once per day
Effect The dragon permanently befouls 10 cubic feet of liquid within 90 feet. The liquid becomes undrinkable and unable to support water-breathing life.

This destroys liquid magic or alchemical items if they're of a lower level than the dragon (a creature can attempt a DC 31 Will save to protect liquids in its possession). This doesn't affect liquids in a creature's body.

Draconic Frenzy

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

Draconic Momentum

The dragon recharges its Breath Weapon whenever it scores a critical hit with a Strike.

Pathfinder #200: Seven Dooms for SandpointOGL