Bloodline of Asmodeus Tiefling

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.

Creating a Tiefling

Ability Score Increase. Your Charisma score increases by 2.
Age. Tieflings mature at the same rate as humans but live a few years longer.
Size. Tieflings are about the same size and build as humans. Your size is Medium.
Speed. Your base walking speed is 30 feet.
Darkvision. 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.
Hellish Resistance. You have resistance to fire damage.
Languages. You can speak, read, and write Common and Infernal.

Bloodline of Asmodeus Traits

Ability Score Increase. Your Intelligence score increases by 1.
Infernal Legacy. You know the Thaumaturgy cantrip. Once you reach 3rd level, you can cast the Hellish Rebuke spell once as a 2nd-level spell. Once you reach 5th level, you can also cast the Darkness spell once. You must finish a long rest to cast these spells again with this trait. Charisma is your spellcasting ability for these spells.

Variations:

Since not all Tieflings are of the blood of Asmodeus, some have traits that differ from those in the Player's Handbook. The Dungeon Master may permit the following variants for your Tiefling character, although Devil's Tongue, Hellfire, and Winged are mutually exclusive.

Devil's Tongue. You know the Vicious Mockery cantrip. Once you reach 3rd level, you can cast the Charm Person spell once as a 2nd-level spell. Once you reach 5th level, you can also cast the Enthrall spell once. You must finish a long rest to cast these spells again with this trait. Charisma is your spellcasting ability for these spells. This trait replaces the Infernal Legacy trait.
Hellfire. Once you reach 3rd level, you can cast the Burning Hands spell once as a 2nd-level spell. This trait replaces the Hellish Rebuke spell of the Infernal Legacy trait.
Winged. You have bat-like wings sprouting from your shoulders. You have a flying speed of 30 feet while you aren’t wearing heavy armor. This trait replaces the Infernal Legacy trait.

Bloodline of Asmodeus Civilizations

Bloodline of Asmodeus Characteristics

The Tieflings connected to Nessus command the power of fire and darkness, guided by a keener than normal intellect, as befits those linked to Asmodeus himself.

Appearance

Tieflings have large horns that take any of a variety of shapes: some have curling horns like a ram, others have straight and tall horns like a gazelle’s, and some spiral upward like an antelopes’ horns. They have thick tails, four to five feet long, which lash or coil around their legs when they get upset or nervous. Their canine teeth are sharply pointed, and their eyes are solid colors—black, red, white, silver, or gold—with no visible sclera or pupil. Their skin tones cover the full range of human coloration but also include various shades of red. Their hair, cascading down from behind their horns, is usually dark, from black or brown to dark red, blue, or purple.

Your Tiefling may not look like other Tieflings. Rather than having the physical characteristics described above, choose 1d4 + 1 of the following features: small horns; fangs or sharp teeth; a forked tongue; catlike eyes; six fingers on each hand; goat-like legs; cloven hoofs; a forked tail; leathery or scaly skin; red or dark blue skin; cast no shadow or reflection; exude a smell of brimstone.