Gravehound (CR 3)

Medium Undead
Alignment: Always neutral evil
Initiative: +6 (+2 Dex, +4 Improved Initiative); Senses: darkvision 60 ft., scent, and Listen +10
Languages: No language

AC: 15 (+2 Dex, +3 natural), touch 12, flat-footed 13
Hit Dice: 4d12 (26 hp)
Fort +1, Ref +3, Will +7
Speed: 40 ft.
Space: 5 ft./5 ft.
Base Attack +2; Grapple +5
Attack: Bite +6 melee
Full Attack: Bite +6 melee
Damage: Bite 1d6+4 plus stun
Special Attacks/Actions: Stunning strike
Abilities: Str 17, Dex 14, Con -, Int 4, Wis 17, Cha 19
Special Qualities: +2 turn resistance, undead traits
Feats: Improved Initiative; Weapon Focus (bite)
Skills: Listen +10
Advancement: 5-6 HD (Medium), 7-12 HD (Large)
Climate/Terrain: Any
Organization: Solitary, gang (2-5 plus 50% chance for 1 leader with 8 HD), or pack (5-10 plus 1-2 leaders with 8 HD)
Treasure/Possessions: None

Source: Miniatures Handbook

Stunning Strike (Su): A creature hit by a gravehound's bite must succeed on a DC 16 Fortitude save or be stunned for 1 round. The save DC is Charisma-based.

Driven by hunger, a gravehound launches itself at a meal with unholy fury. The foulness of its bite can overwhelm its prey, preventing a stricken creature from defending itself.

Canines who live not, but are not dead, gravehounds hunger for flesh enough to sate their never-ending appetites.

A gravehound resembles a decomposing canine of exceptional size. It bounds and dashes, thrusting its toothy muzzle forward, always sniffing for fresh prey or decomposing flesh - a gravehound is not particular about what it eats.

Gravehounds sometimes rise from the corpses of wild dogs who have scavenged the bodies of humanoids that were improperly buried; the site of a mass grave is one of the gravehounds' favorite feeding grounds.

Gravehounds do not speak or understand any language - they just eat.