pf2e.fyi
From Pathfinder #176: Lost Mammoth Valley, which isn't enabled.

Castoroides

CREATURE 3

Beavers are stocky, herbivorous rodents that live in freshwater ecosystems throughout Avistan. They live in lodges, which they construct from logs, grass, rocks, and mud.

Castoroides are bear-sized beavers that build their lodges on land near a water source rather than in the water.


Perception +10; low-light vision, scent (imprecise) 30 feet
Skills Athletics +10, Crafting +7, Survival +8
Str +4, Dex +1, Con +3, Int -4, Wis +3, Cha +1

AC 19; Fort +12, Ref +6, Will +8
HP 45
Deep Breath

A castoroides can hold its breath for 1 hour.

Slap
Trigger The castoroides is targeted by a physical ranged Strike from an attacker it can see

Effect The castoroides swats at the projectile with its wide tail, gaining a +2 circumstance bonus to its AC against the triggering attack.

Speed 20 feet, swim 20 feet
Melee Jaws +12 (unarmed), Damage 2d6+4 piercing plus Grab
Construct Shelter

The castoroides rapidly constructs a simple mound along one side of its space, which can be used to Take Cover.

Gouge

The castoroides deals 2d8 piercing damage to a creature it has Grabbed or Restrained (DC 20 basic Fortitude). A creature that fails its save also takes 1d4 bleed.

Penetrating Bite

As beaver, but the castoroides's jaws Strike ignores the first 10 Hardness instead of the first 5 Hardness.

Prop

The castoroides stabilizes itself with its tail, gaining a +1 circumstance bonus to its Fortitude and Reflex DCs against Shove and Trip attempts until it next takes an action with the move trait.

Grab

Requirements The monster's last action was a successful Strike that lists Grab in its damage entry, or the monster has a creature Grabbed or Restrained

Effect If used after a Strike, the monster attempts to Grapple the creature using the body part it attacked with. This attempt neither applies nor counts toward the creature's multiple attack penalty.

The monster can instead use Grab and choose one creature it's grabbing or restraining with an appendage that has Grab to automatically extend that condition to the end of the monster's next turn.

Pathfinder #176: Lost Mammoth ValleyOGL