pf2e.fyi
From Pathfinder #146: Cult of Cinders, which isn't enabled.

Mud Spider

CREATURE 6

Variant giant tarantula

Tarantulas are ambush predators, but will attack prey in the open.


Perception +14; darkvision
Skills Acrobatics +9, Athletics +16, Stealth +11
Str +6, Dex +1, Con +5, Int -5, Wis +2, Cha -4
Mudwalking

The mud spiders ignore difficult terrain from mud.


AC 21; Fort +15, Ref +13, Will +10
HP 135

Speed 30 feet, climb 30 feet; mudwalking
Melee Fangs +17, Damage 2d8+8 piercing plus Giant Tarantula Venom
Melee Leg +17 (reach 10), Damage 1d12+8 bludgeoning plus Knockdown
Giant Tarantula Venom (poison)
Saving Throw DC 23 Fortitude
Maximum Duration 8 rounds
Stage 1 1d6 poison (1 round)
Stage 2 1d6 poison, Off-Guard, and Clumsy 1 (1 round)
Stage 3 1d6 poison, off-guard, and Clumsy 2 (1 round)
Stage 4 1d6 poison and Paralyzed (1 round).
Hair Barrage

The tarantula flicks its legs, flinging spiky hairs in a 15-foot cone. This deals 4d6 piercing damage with a DC 25 basic Reflex save.

Knockdown

Requirements The monster's last action was a successful Strike that lists Knockdown in its damage entry

Effect The monster attempts to Trip the creature. This attempt neither applies nor counts toward the monster's multiple attack penalty.

Pathfinder #146: Cult of CindersOGL