One ability score increases by 1, and one other score increases by 2.

Tieflings mature at the same rate as humans but live a hundred years longer, up to 250 years.

Cambions 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 know the fire bolt cantrip. [3rd] You can cast plane shift once per long rest. [5th] You can cast alter self once per long rest. CHA is your spellcasting ability.

You also gain a Bonus - Unarmored Armor Class equal to 3 as long as you wield no shield or armor.

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