From Pathfinder #181: Zombie Feast, which isn't enabled.

Zombie Hound

CREATURE -1

UNCOMMON SMALL EVIL MINDLESS UNDEAD UNHOLY ZOMBIE

Perception +1; darkvision

Skills Athletics +5

Str +2, Dex -1, Con +2, Int -5, Wis +0, Cha -2

Slow

A zombie is permanently Slowed 1 and can't use reactions.

AC 13; Fort +5, Ref +0, Will +3

HP 18, void healing; Immunities bleed, death effects, disease, paralyzed, poison, unconscious; Weaknesses vitality 5, slashing 5

Void Healing

A creature with void healing draws health from void energy rather than vitality energy. It is damaged by vitality damage and is not healed by vitality healing effects. It does not take void damage, and it is healed by void effects that heal undead.

Speed 25 feet

Melee Jaws +6 (unarmed), Damage 1d4+3 piercing plus Knockdown

Flesh Tearer

The zombie hound's Strikes deal 1d4 extra damage to Prone creatures.

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 #181: Zombie FeastOGL