Soul Aflame

Your magic comes from your ties to the Plane of Fire, Flame Elementals, the Nine Hells, or whatever their blazing infernos of fire magic. Your magic is powerful, able to drown your foes in seas of astonishing crimson, and raze entire towns in a roaring inferno. However it's also very dangerous.

Living Flames

At 1st level, whenever a hostile creature hits you with a melee attack, fiery magic erupts from you. This eruption causes creatures of your choice that you can see within 10 feet of you to take fire damage equal to half your sorcerer level (minimum of 1).

Tidal Flames

At 1st level, you can use your reaction or bonus action to summon forth a roaring wave of fire to scorch and repel a creature that hit you. On a hit the target(s) must succeed an additional strength saving throw or be pushed back 5 feet and knocked prone.

Creatures huge or larger are immune to being knocked prone by this ability.

 

Heart of Fire

At 6th level, you gain resistance to fire damage. In addition, spells you cast ignore resistance to fire damage.

Searing Fury

At 14th level, you gain hit points equal to your Sorcerer level. Any spell or effect you create treats immunity to fire damage as resistance to fire damage, in addition your flames now deal full damage to stone structures and double damage to wooden structures.

Soul of Flame

At 18th level, you gain immunity to fire damage and are unaffected by hot or cold conditions

Once per long rest you can self immolate, entirely engulfing yourself in crimson flames. While in this state, your cantrips deal an addition 1d6 fire damage and spells 1st level or higher deal an additional 2d6 fire damage. You lose hit points equal to half the additional damage whenever you cast a cantrip or a spell. You also gain a flying speed of 40 feet by propelling yourself forward with flames that erupt from your limbs.

this ability lasts for up to one hour, until you end the affect, or until you lose consciousness.