Did one of your parents have a pact with an archdevil and please it. Did your family hate devils so much that an archdevil decided to ruin them by presisnting you with power or are you just a paw in an archdevil’s plan. For whatever you I have mainfiested magical abilities and your power comes directly from the nine hells.

Devil’s manifestation

Your devilish connections have begun to manifest:

you gain a dark vision of 60ft if you already have dark vision add 60ft to the distance.

you can speak read and write infernal.

Spells that you cast that deal fire damage ignore resistance to fire damage.

Devil’s weapon

For two sorcery points you can choose one weapon which will set alight for one minute dealing an extra 1d8 fire damage and for an extra 4 sorcery points you can make this ignore resistances to fire damage. 

Devil’s rage

As an action you can now go into a devil-like form for one minute equal to your charisma modifier :

• you gain a +1 to ac
• your speed is increased by 10ft
• You gain a +2 to all attack and damage rolls
• you gain resistance to all piercing, slashing and bludgeoining damage 
• you gain weakness to radiant damage
• you gain temporary hit points equal to your level when you kill something
• Due to all the energy consumed to perform this you afterwards gain 1 level of exhaustion

Flame touched

due to your strong connection with the nine hells you have now developed immunity to fire damage

Nine hell’s ressurection

You have now gained the power to use the Nine Hells as a tool. Once per long rest when you either fall unconscious or die you may teleport your body soul and possessions th the Nine Hells. There you will remain for  5 turns before returning teleporting back to your previous space (if unoccupied) or the nearest free space to that with half of your health restored.