Tiefling Cultural Traits
Predominantly tiefling communities are rare. Most tieflings belong to other cultures, as the tiefling heritage is not reliably inherited from generation to generation, particularly when couples of diverse ancestry have children. The tiefling societies that do exist, however, often embrace their infernal heritage and make it their own, which leads them to become more comfortable with their identities.
Ability Score Increase
Your Charisma score increases by 2, and your Intelligence score increases by 1.
Alignment
Tieflings do not have an innate tendency toward evil, though many non-tieflings falsely believe they do. Evil or not, an independent nature inclines many in tiefling culture toward a chaotic alignment.
Infernal Legacy
You know the thaumaturgy cantrip. When you reach 3rd level, you can cast the hellish rebuke spell as a 2nd-level spell once with this trait and regain the ability to do so when you finish a long rest. When you reach 5th level, you can cast the darkness spell once with this trait and regain the ability to do so when you finish a long rest. Charisma is your spellcasting ability for these spells.
Languages
You can speak, read, and write Common and Infernal.