pf2e.fyi
From Pathfinder Society Scenario #2-09: The Seven Secrets of Dacilane Academy, which isn't enabled.

Small Opossum

CREATURE 1
Perception +6; low-light vision, scent (imprecise) 30 feet
Skills Athletics +6, Stealth +6, Survival +4
Str +2, Dex +3, Con +4, Int -4, Wis +1, Cha +0

AC 15; Fort +9, Ref +6, Will +3; +2 circumstance to all saves vs. disease
HP 25; Resistances poison 2
+2 Status to All Saves vs. Disease
Feign Death
Trigger The opossum is reduced below 15 HP

Effect The opossum collapses. It is Off-Guard and can use actions that require only its mind, but any other action ends the ruse. A successful DC 16 Perception check to Seek or DC 16 Medicine check to Recall Knowledge is required to determine that the animal is not, in fact, dead.
Revived Retaliation
Trigger The opossum is attacked or disturbed by a creature within reach while Feigning Death

Effect The opossum Strikes the triggering creature.

Speed 30 feet, climb 20 feet
Melee Jaws +9 (deadly d10, unarmed), Damage 1d10+2 piercing
Melee Claw +8 (agile, unarmed), Damage 1d6+2 slashing
Scurry Underfoot

The opossum Strides up to half its speed. It can pass through other creatures' spaces during this movement, though it must end its movement in an unoccupied space.

Pathfinder Society Scenario #2-09: The Seven Secrets of Dacilane AcademyOGL