Pit Fiends are a greater baatezu. The baatezu are the primary inhabitants of the Nine Hells. They are a strong, evil tempered race held together by an equally strong organization. The baatezu live in a rigid caste system where authority is derived from power and station.
The baatezu wish to fulfill their ancient quest to destroy the tanar'ri, their blood enemies. The baatezu also know that by infiltrating humans and entering their world they will gain power over the tanar'ri. Toward this end they constantly strive to dominate the Prime Material plane and its natives.
The most terrible baatezu of the Nine Hells, pit fiends appear to be giant, winged humanoids, very much like gargoyles in appearance, with huge wings that wrap around their bodies for defense. Pit fiend's fangs are large and drip with a vile, green liquid. Their bodies are red and scaly, often emitting flames when they are angered or excited. In the rare situations they choose to communicate, they use telepathy.
All baatezu except for lemures, nupperibo, and spinagon are able to perform the following magical abilities, once per round, at will: advanced illusion, animate dead, charm person, infravision, know alignment (always active), suggestion, and teleport without error.
Baatezu are affected by the following attack forms:
fire (dragon, magical)
* the gelugon suffers half damage from fire and none from cold.
** unless affected by normal weapons.
*** greater baatezu suffer half damage from silver weapons.
In physical combat, the pit fiend is capable of dealing out tremendous punishment, using its incredible 18/00 Strength (+6 damage adjustment). They can attack six times in a single round, dividing attacks against six different opponents. They can attack with two hard, scaly wing buffets for 1-4 points of damage per hit. Their powerful claws do 1-6 points of damage per successful attack. The bite of a pit fiend is dreadful indeed, causing any creature bitten to take 2-12 points of damage and receive a lethal dose of poison. A saving throw vs. poison is required or the victim dies in 1-4 rounds. The bite also infects the victim with a disease.
Pit fiends can also attack with their tail every round, inflicting 2-8 points of damage per hit. The tail can then hold and constrict the victim for 2-8 points of damage per round until the victim makes a successful Strength check to break free. Pit fiends can also carry jagged-toothed clubs which inflict 7-12 points of damage per hit (this replaces one claw attack).
Once per round a pit fiend can use one of the following spell-like powers, plus those available to all baatezu: detect magic, detect invisibility, fireball, hold person, improved invisibility, polymorph self, produce flame, pyrotechnics, and wall of fire.
They can, once per year, cast a wish spell. They may always gate in two lesser or one greater baatezu with a 100% chance of success, performing this action once per round. Once per day, a pit fiend can use a symbol of pain—the victim must save vs. rod, staff or wand or suffer a -4 penalty on attack dice, and a -2 penalty to Dexterity for 2-20 rounds.
Pit fiends regenerate 2 hit points per round and radiate a fear aura in a 20-foot radius (save vs. rod, staff, or wand at a -3 penalty or flee in panic for 1-10 rounds).
Pit fiends are the lords of the Nine Hells. They are the baatezu of the greatest power and the highest station. Pit fiends are found throughout the various layers of the Nine Hells, but are very rare on the upper layers.
Wherever they are found, these mighty lords hold a position of great authority and power. They sometimes command vast legions consisting of dozens of complete armies, leading them into battle against the tanar'ri. These huge forces are terrifying to behold, and any non-native of the lower planes, of less than 10 Hit Dice, who sees them, flees in panic for 1–3 days. Those of 10 Hit Dice or more must make a saving throw vs. rod, staff, or wand or flee in panic for 1-12 turns.
Pit fiends are spawned from the powerful gelugons of the Nine Hells' eighth layer. When those icy fiends are found worthy they are cast into the Pit of Flame for 1,001 days after which they emerge as pit fiends.