The creature resembles a big, powerfully built dog with short, rust-red fur; its markings, teeth, and tongue are sooty black. It has red, glowing eyes.
Hell hounds are aggressive, fire-breathing canines from the Lower Planes. Specimens are frequently brought to the Material Plane to serve evil beings.
A typical hell hound stands 41⁄2 feet high at the shoulder and weighs 120 pounds.
Hell hounds can be summoned with the summon monster IV spell.
Combat
Hell hounds are efficient hunters. A favorite pack tactic is to surround prey quietly, then attack with one or two hounds, driving it toward the rest with their fiery breath. If the prey doesn’t run, the pack closes in. Hell hounds track fleeing prey relentlessly.
A hell hound’s natural weapons, as well as any weapons it wields, are treated as evil-aligned and lawful-aligned for the purpose of overcoming damage reduction.
Hell hound
Large magical beast (extraplanar, evil, fire, lawful)
Init +5; Senses darkvision, scent; Perception +5
Defense
AC 16, touch 11, flat-footed 15 (+1 Dex, +5 natural)
hp 22 (4d8+4)
Fort +5, Ref +5, Will +3
Immune fire
Vulnerable cold
Offense
Speed 40 ft.
Melee bite +5 (1d8+1 plus 1d6 fire)
Space 5 ft.; Reach 5 ft.
Special Attacks breath weapon (10-ft. cone, 1/2d4 rounds, 2d6 fire, Reflex DC 13 half)
Statistics
Str 13, Dex 13, Con 13, Int 6, Wis 10, Cha 6
Base Atk +4; CMB +5; CMD 16
Feats Improved Initiative, Iron Will
Skills Acrobatics +6, Perception +5, Stealth +11, Survival +5 (+13 when tracking by scent)
Languages Infernal (cannot speak)
Morale intrepid (+2)
Ecology
Environment fiendish realms
Organization solitary, pair, or pack (1d8+4)
Special Abilities
Breath Weapon (Su)
10-foot cone, once every 2d4 rounds, damage 2d6 fire, Reflex DC 13 half. The save DC is Constitution-based.
Fiery Bite (Su)
A hell hound deals an extra 1d6 points of fire damage every time it bites an opponent, as if its bite were a flaming weapon.
Skills
Hell hounds have a +5 racial bonus on Stealth checks. They also receive a +8 racial bonus on Survival checks when tracking by scent, due to their keen sense of smell.