Demon race

Overview
Demons are a race of creatures native to chaotic evil-aligned planes. Demons are ferocity personified and will attack any creature just for the sheer fun of it — even other demons. They are monsters of the Evil Outsider type. Tanar'ri is an AD&D 2nd Edition terminology, back then the game was accused of being "Satanic", so TSR, Inc. renamed it.

Combat
Since demons are chaotic evil alignment and evil outsider type, both chaotic outsider and evil outsider bane weapons are effective on them.

Qualities
Most demons possess the following traits (unless otherwise noted in a creature’s entry).
 * DR/Cold Iron - All demons
 * Immunity to electricity and poison
 * Resistance to acid, cold, and fire
 * Spell Resistance (Most versions)
 * Summon (Sp): Many demons share the ability to summon others of their kind (the success chance and type of demon summoned are noted in each monster description). Demons are often reluctant to use this power until in obvious peril or extreme circumstances.

Tips
Important tips:
 * Tip #206: Devils are Lawful Evil and tend to dislike silver. Demons are Chaotic Evil and tend to dislike cold iron.
 * Tip #206 (Other version.): To bypass the Damage Reduction (DR) of Devils, you need a silver or good weapon or a weapon that is both silver and good, depending on the Devil. To bypass the DR of Demons, you need a cold iron or good weapon or a weapon that is both cold iron and good. Good metalline weapons can bypass the DR of both types of creature.

Types
Demons have many sub-races, with highly varied forms and characteristics. These include:
 * Bebilith
 * Draegloth
 * Dretch
 * Hezrou
 * Fire Reaver
 * Flesh Render
 * Glabrezu
 * Goristro
 * Ice Flenser
 * Jarilith
 * Marilith
 * Nightmare
 * Vrock