Homebrew Cult-Made Draconic Tiefling Species Details

Born an Aasimar, or other Celestial planetouched, you were transformed by a cult, through the power of the God Pha'noir into a variant Tiefling, at a very young age. Instead of infernal blood, his blood runs through you. It corrupted your being; body, mind, and soul, into a draconic Tiefling. You are very similar to a Tiefling, in height, size, weight, etc., but you possess features more similar to those of a Dragonborn, such as a breath weapon, and speaking in Draconic. You also have Tiefling traits like Hellish Resistance, and Darkvision, but you gained the ability to speak the Infernal tongue, at the loss of your knowledge of the Celestial language in which you were once fluent. 

Cult-Made Draconic Tiefling Traits

The ritual granted you with certain Tiefling and Dragonborn racial traits.

Breath Weapon

You can use your action to exhale destructive energy. Your draconic ancestry determines the size, shape, and damage type of the exhalation. When you use your breath weapon, each creature in the area of the exhalation must make a saving throw, the type of which is determined by your draconic ancestry. The DC for this saving throw equals 8 + your Constitution modifier + your proficiency bonus. A creature takes 2d6 damage on a failed save, and half as much damage on a successful one. The damage increases to 3d6 at 6th level, 4d6 at 11th level, and 5d6 at 16th level. After you use your breath weapon, you can’t use it again until you complete a short or long rest.

Damage Resistance

You have resistance to the damage type associated with your draconic ancestry.

Languages

You can speak, read, and write Common, Infernal, and Draconic. Draconic is thought to be one of the oldest languages and is often used in the study of magic. The language sounds harsh to most other creatures and includes numerous hard consonants and sibilants.

Mild Infernal Legacy

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 this spell.

Hellish Resistance

 You have resistance to fire damage.

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