unique n medium construct 

Variant tupilaq (Bestiary 3 278)

Perception +22; darkvision

Skills Athletics +24

Str +7 Dex +5 Con +5 Int -5 Wis +5 Cha -5

AC  32; Fort +22, Ref +20, Will +18

HP 145; Hardness [object Object]; Immunities death effects, disease, doomed, drained, fatigued, healing, mental, necromancy, nonlethal attacks, paralyzed, poison, sickened, unconscious

Construct Armor As tupilaq, but once reduced to 72 or fewer Hit Points (or immediately upon being damaged with a critical hit) it loses its hardness and its Armor Class is reduced to 28.

Speed 40 feet, swim 40 feet

Melee [>] jaws +24 (agile), Damage 2d8+13 slashing plus

Primal Innate Spells DC 30; 5th lightning bolt (×3)

Carver's Curse As tupilaq, but a 5th-level primal spell.

Gatewalkers #3: Dreamers of the Nameless Spires, page 56.