Infernal Heritage

You have fiendish blood, whether it's an ancestor or a curse.(im bad at flavor text)

Flames From Below

You draw upon hellish flames. Whenever you cast a spell that deals fire damage, you do 1 + sorcery points expended(maximum of 6) extra fire damage. Once you use this feature, you can' t use it until you finish a short or long rest. 

Hurl Flames

You call upon your powers to burn foes with hellish fire. 

Flaming Resistance

Your infernal heritage gives you strength against demonic damage.

Burn of the Burned

You expend 2 sorcerery points. When you do so, you deal 6d8 fire damage to creatures in a 30 ft sphere centered on you