You have advantage on saving throws against being charmed, and magic can’t put you to sleep.

Your wisdom or intelligence score increases by 1, and dexterity increases by 2.

Tieflings mature at the same rate humans do and reach adulthood around the age of 20. They live much longer than tiefling, however, often exceeding 180 years.

Tieflings might not have an innate tendency toward evil, but many of them end up there. Evil or not, an independent nature inclines many tieflings toward a chaotic alignment.

Tieflings are about the same size and build as humans. Your size is Medium.

Your base walking speed is 30 feet.

Thanks to your infernal heritage, you have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray.

You have resistance to fire damage.

You can speak, read, and write Common, Elvish and Infernal.