Soul of raw power

It was said a long time ago, a being of pure power, that made even the most powerful gods shudder in its wake, was defeated by legendary heroes beyond the realm of spacetime. When this being died it scattered the tiniest flecks of it’s crystal-like body across the multiverse, causing power surges to spring up randomly, sometimes causing solar systems to detonate from a single fleck. 
This was likely just a story, right?
Well, oddly you have seemed to have tapped into the raw energy source as your magic reflects your raw energy stored within you body. 

Raw power marks
You gain unnatural quirks that reflect the crystals of pure power. (you may take up to 2 quirks from below)
1d6 - Quirk
1 - Large purple crystals jut from your body. 
2 - Your eyes glow purple when you cast a spell. 
3 - Your hands radiate purple energy just before you cast a spell. 
4 - Cracks of purple energy line your skin. 
5 - The fabric of spacetime shudders around you when you cast a spell of 3rd level or higher. 
6 - You emit radiation, people can get minor burns from standing too close to you for more than 10 minutes. 

Soul of power
Starting at the 1st level, your very being is infused with raw force. When you cast a spell of 1st level or higher that deals damage, as a part of the spell, you can reduce your current hit points by an amount equal to your level (this does not count as taking damage), however the spell deals an additional amount of force damage equal to 3 times your level. 

Armor of power
Starting at the 1st level, while not wearing armor, your armor class equals 13 + your charisma modifier. If a creature hits you with a melee attack, you can use a reaction to deal 1d6 force damage to them. 

Desolation 
Starting at the 6th level, when you cast a spell that deals damage, you may spend sorcery points equal to half your level, to deal maximum damage instead of rolling. When you deal maximum damage in this way, roll a d6. On a 1 you take necrotic damage equal to your level. You regain the use of this ability when you complete a long rest. 

Devastating spells 
Starting at the 14th level, when you deal damage with a spell of 1st level or higher, you can spend a sorcery point to ignore resistance and immunity and deal additional damage equal to your charisma modifier. 

Raw Power
Starting at the 18th level, you start to emit an aura of such sheer power that creatures that start their turn within 5 feet of you in combat (other than yourself) take 5 points of force damage at the beginning of each of their turns. This damage cannot be reduced in any way shape or form. 

Immense Explosion 
Starting at the 18th level, if you are reduced to 0 hit points, you can choose to erupt in a massive explosion of stored energy. Each creature within 1 mile of yourself must make a dexterity saving throw against your spell save dc, which on a fail they take (3 times your level)d10 force damage, or half as much on a save. When you use this ability you die and can only be resurrected by the true resurrection spell, or similar 9th level magic that does not require a body to resurrect you. This ability automatically activates if you were killed outright by an attack, but not if you died from failing 3 death saving throws.