Infernal Heritage

Your innate magic comes from infernal power that can be traced back to the Nine Hells of Baator, power infused into your blood or that of your ancestors. Such power most often manifests itself as the result of a pact or bargain made with a powerful devil, such as a Pit Fiend or an Erinyes. You may have endured a near death experience at the hands of a devil and been forever tainted by the encounter, or perhaps your bloodline includes a powerful Tiefling whose ancestry has manifested in an unusual way. Regardless of circumstance, fell power now surges through you, both a blessing and a curse.

INFERNAL HERITAGE ORIGIN SPELLS

Sorcerer Level	Spells
1st	command, burning hands
3rd	detect thoughts, scorching ray
5th	fireball, fear
7th	fire shield, wall of fire
9th	flame strike, hallow

Devil's Progeny

At 1st level, the infernal blood you possess grants you innate understanding of devils and their machinations. You can speak, read, and write Infernal, and gain proficiency in one of the following skills of your choice: Deception, Persuasion, or Intimidation.

Additionally, your proficiency bonus is doubled when making ability checks using this skill.

Deception

You gain proficiency in Deception

Intimidation

You gain proficiency in Intimidation

Persuasion

You gain proficiency in Persuasion

Fiendish Bloodline

As devilish magic flows through your body, it causes physical traits of your Infernal ancestors to emerge. At 1st level, your HP maximum increases by 1 and increases by 1 again whenever you gain a level in this class.

Additionally, your vitality is bolstered by your Fiendish bloodline. Your AC equals 13 + your Dexterity modifier when you aren’t wearing armor.  You gain the ability to speak, read and write Infernal.

Iron Above, Iron Below

At 6th level, your magic begins to take on aspects of the Iron City of Dis, fortifying your mind against trickery and outside intrusion, as well as the City of Chains that lies in the layer below anchored perilously its underside. You have advantage on ability checks to discern illusions, and on saving throws against being charmed or frightened.

As an action, you can spend 2 sorcery points to cause infernal chains to erupt from the ground underneath a creature up to 60 feet away. That creature must make a Dexterity saving throw. On a failed save, the chains coil around them and they are restrained. A creature restrained by the chains can use its action to make a Strength or Dexterity check (its choice) against your spell save DC. On a success, it frees itself and the effect ends.

Devilish Awakening

At 14th level you gain the ability to sprout a pair of wings from your back, gaining a flying speed equal to your current walking speed. You can create these wings as a bonus action on your turn and they last until dismissed as a bonus action on your turn.

Additionally, you gain the unearthly glibness of infernal pactmakers, and the ability to enforce contracts as they do. Whenever you make an ability check using the skill gained by your Devil's Progeny feature, you have advantage on the roll.

Wings

 

You may not manifest these wings whilst wearing armour unless it is designed to accommodate them, and likewise clothing may be damaged or destroyed by their manifestation. Aesthetically these wings may take any form at the DM's discretion, most commonly they are either batlike or birdlike with black feathers though they may take any form you desire so long as the DM agrees to allow it

Infernal Power

Beginning at 18th level, you can channel the dread power of the lower planes. Spells you cast ignore resistance and immunity to fire damage. In addition, once per turn you may increase the damage of any Sorcerer spell you cast that deals fire damage by your level.

Additionally, you take on the inscrutable nature of the Lord of the Ninth himself. Any magic or ability that would determine if you are telling the truth indicates you are being truthful, if you so choose, and you can't be compelled to tell the truth by magic