Planescape: Twilight of the Idols
+2 Dexterity, +2 Intelligence, –2 Charisma: Tieflings are quick in body and mind, but are inherently strange.
Darkvision: Tieflings see in the dark up to 60 feet.
Skilled: Tieflings have a +2 racial bonus on Bluff and Stealth checks.
Spell-Like Ability: Tieflings can use darkness once per day as a spell-like ability. The caster level for this ability equals the tiefling’s class level.
Fiendish Resistance: Tieflings have cold resistance 5, electricity resistance 5, and fire resistance 5.
Fiendish Sorcery: Tiefling sorcerers with the Abyssal or Infernal bloodline treat their Charisma score as 2 points higher for all sorcerer class abilities.
Languages: Tieflings begin play speaking Common and either Abyssal or Infernal. Tieflings with high Intelligence scores can choose any of the following: Abyssal, Draconic, Dwarven, Elven, Gnome, Goblin, Halfling, Infernal, and Orc.