Tiefling (Levistus)

To be greeted with stares and whispers, to suffer violence and insult on the street, to see mistrust and fear in every eye: this is the lot of the tiefling. And to twist the knife, tieflings know that this is because a pact struck generations ago infused the essence of Asmodeus, overlord of the Nine Hells (and many of the other powerful devils serving under him) into their bloodline. Their appearance and their nature are not their fault but the result of an ancient sin, for which they and their children and their children's children will always be held accountable.

ability score increase: Your Charisma score increases by 2, your Constitution score increases by 1

age: Tieflings mature at the same rate as humans but live a few years longer.

Size: Medium

speed: 30ft

Languages: Common, Infernal

parent race: Tiefling

race features:
Legacy of Stygia: You know the Ray of Frost cantrip. When you reach 3rd level, you can cast the Armor of Agathys 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.

Frozen Stygia is ruled by Levistus, an archdevil known for offering bargains to those who face an inescapable doom.