Mage-Killer

Specially Trained to kill with magic users, you have been instructed on how to weave and manipulate the web of magic to completely ignore you, like a small anti-magic field, putting casters at a severe disadvantage when it comes to stopping you doing your... business.

Unseen by magic

Starting at 3rd level, you learn how to manipulate magic in such a way that you cannot be located by magical means. You and any items you carry can no longer be detected or spied on by spells of magical effects (E.g scrying, locate object, locate creature).

Anti-magic shield

When you choose this archetype at 3rd level, you gain an aura around your body that stop the arcane getting close to you  Any creature that can innately sense or casts a spell to sense magic such as detect magic will be made visibly uncomfortable by this aura. You have advantage of saving throws against spells and magical effects if you can see the source of said effect.

Know their weakness

Starting at 9th level, when you make a successful attack on a creature with the 'spellcaster'  trait or any effects the DM counts as 'magical' you can add an additional amount of psychic damage equal to double your proficiency bonus.

Reverse-Hex

By 13th level, you have familiarised yourself so much with the arcane if a melee or ranged spell attack is made against you, you can try to manipulate the magical energy to reflect it. As a reaction when a creature you can see casts a spell within 45ft of you, you can use a reaction to cast *counterspell* at 5th level. For the ability check you use an arcana check.

Once you use this feature you cannot use it again until after a long or short rest.

At 18th level you cast counterspell at 7th level

Return to Caster

Starting at 17th level, you can refuse to fall under the effects of any magicks by manipulating the spell back to the one who casted it. When a creature you can see casts a spell with you or a creature within 10ft of you as the target or has you in it's area of effect you can roll a D4 on 3 or higher you can negate the spells effects upon yourself or the intended target. If you negate the effect the creature that originally casted the spell becomes the target or is treated as within range of the spell.