From Pathfinder #171: Hurricane's Howl, which isn't enabled.

Karumzek

CREATURE 4

Perception +11; darkvision; poison sense (precise) 30 feet

Languages Chthonian, Common, Diabolic, Sakvroth

Skills Acrobatics +10, Crafting +12, Nature +8, Religion +10, Stealth +12

Str +3, Dex +4, Con +3, Int -1, Wis +2, Cha +0

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 21; Fort +12, Ref +12, Will +8

HP 60; Immunities poison; Weaknesses holy 5

Poison Sense (precise) 30 feet

A karumzek senses any poisoned creature. It can spend an action with the concentrate trait to determine the poison's type and current stage.

Speed 40 feet, climb 30 feet

Melee Bite +12, Damage 2d6+4 piercing plus Karumzek Venom

Occult Innate Spells DC 21, attack +13; 2nd Death Knell, Invisibility (At Will) (self only), Vomit Swarm; Constant (2nd) Negate Aroma

Change Shape (arcane, concentrate, polymorph)

A karumzek can take the shape of a Tiny spider. This doesn't change its Speed or Strikes.

Karumzek Venom (poison, virulent)

Saving Throw DC 19 Fortitude

Maximum Duration 6 rounds

Stage 1 1d6 poison (1 round)

Stage 2 1d6 poison and Enfeebled 1 (1 round)

Stage 3 2d6 poison, Clumsy 1, and enfeebled 1 (1 round)

Pathfinder #171: Hurricane's HowlOGL