[The quai dau to, like the con-rit, is part of Paizo's effort to expand the Asian folkloric monsters out of just India and Japan. @abominationimperatrix assures me that the quai dau to is a genuine Vietnamese creature, but the PF version and Google's decline have given it complete camouflage. My version is mechanically similar to the Monster Core version, but I've tightened up the language around its water draining and extended the duration of its mist to make it more useful.
Quai Dau To
CR 13 N Magical Beast
This creature resembles a bipedal fish the size of a wagon, with glittering scales, large round eyes and a mouth full of sharp teeth. It has a short trunk like that of an elephant dangling over its maw, and a beard below it.
Quai dau to are strange amphibious predators that use water to hunt. The scales of a quai dau to may be stronger than plate armor, but its interior is full of hollows and bladders, allowing it to absorb enormous amounts of water or air. When it absorbs water, it can use it to create a cloud of concealing mist, or fire it in a blast that batters and pushes enemies. When it absorbs air, it inflates like a puffer fish and can fly, swimming through air the way it does water. Flying quai dau to are somewhat awkward with their swollen bodies, and so they typically use flight for scouting or escape, and land in order to fight.
Quai dau to live on the margins of land and water, such as riverbanks, coastlines and marshes. They are very sensitive to noise—their inflatable membranes also act to amplify vibrations like an ear. Creatures that make too much noise in a quai dau to’s territory are likely to drive the beast into a violent rage. Quai dau to care more about filling their bellies than morals or ethics. They tend to attack the largest creatures they can; canny adventurers may sacrifice their horses to escape a quai dau to’s attack, or even summon larger monsters to distract it. Quai dau to understand simple phrases in Aquan, but cannot themselves speak.
Quai Dau To CR 13
XP 25,600
N Huge magical beast (aquatic)
Init +8; Senses darkvision 60 ft., mistsight, Perception +22, scent
Aura frightful presence (60 ft., Will DC 18)
Defense
AC 27, touch 12, flat-footed 23 (-2 size, +4 Dex, +15 natural)
hp 189 (14d10+112)
Fort +16, Ref +12, Will +11
Defensive Abilities reflective scales; Weakness vulnerable to sonic
Offense
Speed 40 ft., swim 30 ft., fly 30 ft. (average)
Melee bite +20 (2d12+8), tail slap +15 (2d8+4)
Space 15 ft.; Reach 10 ft. (20 ft. with tail slap)
Special Attacks mist breath, spout water
Statistics
Str 27, Dex 18, Con 27, Int 5, Wis 20, Cha 9
Base Atk +14; CMB +26; CMD 40
Feats Combat Reflexes, Improved Initiative, Improved Vital Strike, Iron Will, Power Attack, Skill Focus (Stealth), Vital Strike
Skills Fly +12, Perception +22, Stealth +13, Swim +20; Racial Modifiers +8 Fly, +8 Perception, +8 Stealth
Languages Aquan (cannot speak)
SQ amphibious, drain water, inflate
Ecology
Environment warm and temperate aquatic and marshes
Organization solitary or pair
Treasure incidental
Special Abilities
Drain Water (Ex) As a move action, a quai dau to can drain a body of water, lowering the height of a 15 ft. by 15 ft. patch of water by 10 feet, as per a control water spell. When it has water in it, the quai dau to can use its mist breath and spout water abilities. The water level equalizes rapidly in a larger body of water without magic to contain it, but all creatures in the water within 30 feet of where the quai dau to drained water (except the quai dau to itself) are considered flat-footed for 1 round.
Frightful Presence (Ex) The frightful presence of a quai dau to gains a +2 racial bonus to the save DC.
Inflate (Ex) A quai dau to must take a move action in order to start using its fly speed, but may fly thereafter without taking additional move actions. When flying, a quai dau to is bloated with air, suffering a -1 penalty on attack rolls and AC, and a -4 penalty on Stealth checks.
Mist Breath (Ex) When a quai dau to is full of water, it may expel the water in a fine mist as a move action, affecting a 20 foot radius surrounding itself as per a fog cloud spell. This mist lasts for 1d4+1 rounds. Using this ability empties the quai dau to of water.
Reflective Scales (Ex) When a creature within 30 feet of a quai dau to uses a spell or effect with the light descriptor, the quai dau to can expend an attack of opportunity to reflect the light off its scales in a blinding display. All creatures within 30 feet of the quai dau to must succeed a DC 21 Fortitude save or be blinded for 1 round. The save DC is Dexterity based.
Spout Water (Ex) When a quai dau to is full of water, it may expel the water in a powerful stream as a standard action. All creatures in a 90 foot line take 9d10 points of bludgeoning damage and are pushed 10 feet. A DC 23 Reflex save halves the damage and negates the push effect. The save DC is Constitution based and includes a -2 racial penalty. Using this ability empties the quai dau to of water.
