Sorcerous Origin: Void Soul

some sorcerers are not simply born with their abilities, some a touched buy a powerful magic or force and left forever changed. Those touched by the vast darkness of the void, become feared warriors of darkness, sending the souls of those they slay into the very abyss that granted them their power

(shout out to u/Specs64z for the origial consept found here: https://bit.ly/33x62Of)

Void warrior

At 1st level, the void imbues you with skills and knowledge to better protect yourself. You gain proficiency with medium armor, shields, and martial weapons. The power of the void also allows you to magically channel your will through a particular weapon. Additionally, your hit point maximum increases by 1 and increases by 1 again whenever you gain a level in this class.

Whenever you finish a long rest, you can touch one weapon that you are proficient with and that lacks the two-handed property. When you attack with that weapon, you can use your Charisma modifier, instead of Strength or Dexterity, for the attack and damage rolls.

Mold shadows

When you choose this origin at 1st level, you can mold shadows to shield you from harm. When you are hit by an attack, you can use your reaction to gain a +2 bonus to your AC against that attack.

When you reach 3rd level in this class, you learn the shadow blade spell, which doesn't count against your number of sorcerer spells known. In addition, you can cast it by spending 2 sorcery points or by expending a spell slot. If you cast it with sorcery points, it doesn’t require concentration, and you calculate it’s attack and damage using your charisma modifier. If you upcast the spell, it costs sorcery points equal to the spell level. You cannot cast it at a level higher than your highest level spell slot this way.

Hunger of the void

at 6th level the hunger of the void drives you to greater lengths. when you cast a cantrip, or use the attack action with a melee weapon, you can attack wth a melee weapon as a bonus action

when you cast a spell of 1st level or higher you can spend one sorcery point to attack with a melee weapon as a bonus action

Isolation

Starting at 14th level you gain the ability to send the living into the abyss, When you hit a creature with a melee attack on your turn, you can use this feature to instantly transport the target through the void. The creature disappears and can't breathe in the silent, empty darkness.

At the end of your next turn, the target takes 8d8 psychic damage and returns to the space it previously occupied, or the nearest unoccupied space. Once you use this feature, you can't use it again until you finish a long rest.

void form

At 18th level, you have given in to the void and transformed into a relentless creature of shadow. You gain the following benefits:

You no longer need to sleep, eat, drink, or breath.

You no longer age, and are immune to disease.

You can spend 8 sorcery points as an action to become a true embodiment of the void for 1 minute, during this time you gain these benefits:

You can a flying speed equal to your walking speed

You gain resistance to bludgeoning, piercing and slashing damage

You can move though any objects, terrain, or creatures as if they were difficult terrain, when you move through a creature for the first time during your turn they must make a Wisdom save against your spell save DC or take 5d8 psychic damage. if you end your turn within the space of an object or a creature you take 1d10 force damage

The Void Form ends early if you are reduced to 0 hitpoints