Shrouded Bloodline

Shrouded in mystery, few know of the origins of the Seraphta, a race of mountain dwelling sorcerers that channel the dark necrotic energies from a young age. Lorists and legend-tellers speak of the Seraphta as a colony of necromancers springing to life after a storm of purple lightning ripped the skies above the Spine of the World. Once they become one with the darkness, they can bend it to their will, dismissing the call to evil or fully embracing it. 

Chaotic Origins

At 1st level, you choose to either learn an additional cantrip from any class or gain resistance to necrotic damage. 

Tasting the Darkness

You may gain resistance to necrotic damage. 

Testing the Darkness

You may learn a cantrip from any class.

Dark Heritage

Starting at 6th level, when you cast a spell, you can add your Charisma modifier to one damage roll of that spell. Additionally, you can spend 1 sorcery point to gain immunity to necrotic damage for 1 hour.

Necrotic Realization

The dark powers swell within you, condensing within your horns, causing them to double in length. Having been immersed in the darkness and bending it to your whims and necessities, you become immune to necrotic damage.

At 14th level, your spell attack bonus increases by 1 for necrotic attacks and increases by 1 again whenever you gain a level in this class.

Seraphtan Legacy

At 18th level, you've become a powerful vessel for the powers you possess. Calling upon the life force altering powers of necromancy, as an action, you can spend 5 sorcery points to steal 25 HP from a creature you can touch, gaining 25 temporary hit points with a duration of 30 minutes. If after 30 minutes you still have the temporary hit points, they return to the creature they were take from, healing them for 25 hit points. However, if the creature died within 15 minutes of the duration expiring, they reanimate as an undead facsimile of themselves. They are hostile to all other creatures while neutral to you. They are resistant to necrotic damage.

Additionally, you gain immunity to necrotic damage.