From Pathfinder Society Intro: Year of Boundless Wonder, which isn't enabled.

Enormous Rat

CREATURE 3

UNCOMMON LARGE ANIMAL

Perception +9; low-light vision

Skills Acrobatics +8, Athletics +12, Stealth +8

Str +5, Dex +3, Con +3, Int -4, Wis +2, Cha -2

AC 19; Fort +10, Ref +8, Will +7

HP 45

Speed 35 feet

Melee Jaws +12 (unarmed), Damage 1d10+5 piercing plus Filth Fever plus Gnaw Bones plus Knockdown

Drag

The enormous rat makes a jaws Strike against a Prone enemy. If it hits, in addition to dealing damage, the enormous rat Strides up to 10 feet, dragging the enemy along.

Filth Fever (disease)

The Sickened and Unconscious conditions from filth fever don't improve on their own until the disease is cured.

Saving Throw DC 14 Fortitude

Stage 1 carrier with no ill effect (1d4 hours)

Stage 2 Sickened 1 (1 day)

Stage 3 Sickened 1 and Slowed 1 (1 day)

Stage 4 Unconscious (1 day)

Stage 5 dead

Gnaw Bones

A creature that's critically hit by an enormous rat must succeed at a DC 20 Fortitude save or become Wounded 1 as the creature's bones or cartilage are crushed by the rat's jaws.

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 Society Intro: Year of Boundless WonderOGL