pf2e.fyi
From Pathfinder #213: Thirst for Blood, which isn't enabled.

Keeper of Ancorato

CREATURE 10
UNIQUEGARGANTUANBEASTINCORPOREALSPIRIT
Perception +18; darkvision, wavesense (imprecise) 120 feet
Languages Fey, Thalassic; Truespeech
Skills Athletics +23, Diplomacy +20, Nature +18, Survival +16
Str +7, Dex +2, Con +5, Int +0, Wis +2, Cha +3
Constant Spells

A constant spell affects the monster without the monster needing to cast it, and its duration is unlimited. If a constant spell gets counteracted, the monster can reactivate it by spending the normal spellcasting actions the spell requires.

AC 29; Fort +21, Ref +16, Will +18
HP 160; Immunities disease, paralyzed, poison, precision
Keeper's Ward (aura, primal)

30 feet. All allies within 30 feet of the Keeper gain a +1 status bonus to saves against magical effects. The bonus increases to +2 if the effect originated from an aquatic creature.

Speed fly 20 feet, swim 40 feet
Melee Tentacle +21 (magical, reach 30, unarmed), Damage 3d10+9 force plus Keepers Touch
Primal Innate Spells DC 27, attack +19; 3rd Aqueous Orb, Feet to Fins (At Will), Mist, Water Breathing (At Will), Hydraulic Push; Constant (5th) Truespeech
Bond with Mortal (mental, primal)
Frequency once per day
Effect The Keeper forms a bond with a mortal creature. While the bond exists, the Keeper increases their current and maximum Hit Points by 20, gains a +2 status bonus to their attack and damage rolls, and can communicate telepathically with the bonded mortal as long as the two beings are on the same plane. The Keeper can only be bonded with one mortal at a time, and they can take this action again to end the bond or to form a new bond (which also ends the old bond). The bond also ends if the Keeper or the mortal dies.

This bond strengthens the Keeper's connection to the mortal Universe. While bonded, the Keeper gains the amphibious trait, loses the incorporeal and spirit traits, loses their immunities and resistances, and changes their Strikes to deal the appropriate physical damage (typically bludgeoning) instead of force damage.

Bonded Strike
Requirements The Keeper is currently Bonded with a Mortal
Effect The Keeper makes a jaws Strike. If this attack hits, the bonded mortal can spend their reaction to Strike the same target.
Keeper's Touch (primal)

The Keeper's touch instills their foes with the icy chill of the ocean depths, sapping away their life. A creature hit by the Keeper's tentacle must attempt a DC 26 Fortitude save.

Success The creature is unaffected.

Failure The creature becomes Drained 1. If the creature was already drained 1 by the Keeper's touch before attempting the save, a failed save increases the value of the drained condition by 1, to a maximum of Drained 4. The drained creature is temporarily immune until the start of the Keeper's next turn.

Critical Failure As failure, but the creature increases drained value by 2.

Pathfinder #213: Thirst for BloodORC