Upon your birth or by some abnormal incident you became a creature who is void of magic known either as Blanks or Nulls where instead of using natural sorceries or inner magic you instead steal the magic of the world and wield it as a weapon or destroying the worlds magic itself.

Creatures such as yourself often work to hunt down the rogue magical creatures of the world such as aberrations, fiends and elementals as your very presence is in direct opposition to them.

Planar Anathema

You are a blank space in the eyes of magical vision creatures and extra planar creatures, when a creature of the aberration, celestial, elemental, fey, fiend or undead rolls a perception check against you or any creature within 10 feet of you they roll with disadvantage.

Elements Bane

Your body resists the many magics of the world, after a long rest choose one damage type (acid, cold, fire, force, lightning, necrotic, poison, psychic, poison, radiant, thunder) if damage of this type is inflicted to you through magical means such as a spell, magic weapon, magic trap, etc. You have resistance to this type of damage

Reverse sorcery

The very sorcery used to enhance your own spells can be used now instead to counter you enemies spells, when an enemy casts a spell you can as a reaction spend sorcery points to negate the spell. You can use the flexible casting chart to determine the cost it takes to cancel. Alternatively you can as an action on your turn pay the same cost to dispel the same level of spell, you cannot counter or dispel a spell of 6th level or higher this way.

1st- 2 sorcery points

2nd- 3 sorcery points

3rd- 5 sorcery points

4th- 6 sorcery points

5th- 7 sorcery points

Arcane storage

The void of magic in your body leaves room for the power you've stolen from others to be temporarily stored and put to your own use. When you counter a spell through the use of the reverse sorcery feature or the counter spell, you can store a spell that's level is equal to or below your charisma modifier. You can cast this spell on your turn ignoring the material components if the spell requires it, if you do not cast this spell before the end of your next turn it fizzles out and is lost.

Magic consumer

The harmful effects of magic have trouble taking hold of your body, you gain advantage on all saving throws against magical effects used against you.