Pit fiend

The undisputed lords of most other devils, pit fiends attend the archdukes and archduchesses of the Nine Hells and carry out their wishes. These mighty devils are the generals of the Nine Hells, leading its infernal legions into battle.

With an inflated sense of superiority and entitlement, pit fiends form a grotesque aristocracy in the infernal realm. These domineering and manipulative tyrants conspire to eliminate anything that stands between them and their desires, even as they negotiate the convoluted and dangerous politics of the Nine Hells.

A pit fiend is a hulking monster with a whip-like tail and enormous wings that it wraps around itself like a cloak. Armored scales cover its body, and its fanged maw drips a venom that can lay the mightiest mortal creatures low. Fearless in battle, a pit fiend takes on the most powerful foes in single combat, demonstrating its supremacy and an arrogance that prevents it from acknowledging any chance of defeat.

Abilities

 * Immunities: Poisoned Condition
 * Damage Resistance: Cold; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't silvered.
 * Damage Immunities: Fire and Poison.
 * Condition Immunities: Poisoned.
 * Senses: Truesight.
 * Languages: Infernal, Telpathy.
 * Fear Aura: Any hostile creature can be frightened.
 * Magic Resistance: The pit fiend has advantage on saving throws against spells and other magical effects.
 * Magic Weapons: The pit fiend's weapon attacks are magical.
 * Innate Spellcasting: Can cast a few spells which require no material components.
 * Attacks:
 * Multiattack: The pit fiend can make four attacks: one with its bite, one with its claw, one with its mace, and one with its tail.
 * Bite: The target can become poisoned. While poisoned in this way, the target can't regain hit points.
 * Claw: The fiend can make a claw attack.
 * Mace: It can make an attack with its Mace.
 * Tail: The pit fiend can attack with its tail.

Known Pit Fiends

 * Utugash a pit fiend in the City of Dis.
 * Ghurrix a pit fiend who frequented the slave markets in the City of Brass. He is one of the ambassadors to the Nine Hells.