Devils are Lawful evil outsiders that hail from the plane of Hell. Devils possess a particular suite of traits (unless otherwise noted in a creature's entry).

• Immunity to fire and Poison.
• Resistance to acid 10 and cold 10.
• See in Darkness (Su) Some devils can see perfectly in Darkness of any kind, even that created by a deeper Darkness spell.
• Summon (Sp) Devils share the ability to Summon others of their kind, typically another of their type or a small number of less-powerful devils.
• Telepathy.
• Except when otherwise noted, devils speak Celestial, Draconic, and Infernal.
• A devil's natural Weapons, as well as any Weapons it wields, are treated as Lawful and evil for the purpose of resolving Damage reduction.