Every score except for your Charisma score increases by 1, and your Charisma score increases by 2.

Demon brood mature at the same rate as humans but live a few years longer.

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

Your base walking speed is 30 feet and your flying speed is 45ft.

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 and immuniy to the poisoned condition and poison damage.

You know the thaumaturgy cantrip. Charisma is your spellcasting ability for these spells.

You can speak, read, and write Common and Abyssal.