Magic casters fear you, for you are doom. Dread it, run from it the anti-magic arrives all the same. Whether you are powered by the gods that have a hatred of magic or your own hatred, no magic shall pass by you except your own. Against all the magic users can conjure, all the wickedness that counterspell can produce, we will send onto them... only you. Slash and sunder, until it is done.

Tenets of Antimagic

A paladin who assumes the Oath of Antimagic swears to lay waste to those who use and abuse magic.

Castigate the Caster. Magic only belongs to those who deserve it. All others must be destroyed.

Prevent Future Abuse. Those who have abused magic must never be allowed to use it again. Remove their ability to by any means necessary.

Magic for the Worthy. Only those who are trustworthy with magic, such as yourself, are deserving of its power.

Oath Spells

3rd-level Oath of Antimagic feature

You gain oath spells at the paladin levels listed in the Oath of Antimagic Spells table. See the Sacred Oath class feature for how oath spells work.

Oath of Antimagic Spells

Paladin Level	Spells
3rd	Absorb Elements, detect magic
5th	blindness/deafness, silence
9th	counterspell, dispel magic
13th	divination, resilient sphere
17th	scrying, wall of force

Channel Divinity

3rd-level Oath of Antimagic feature

You gain the following two Channel Divinity options. See the Sacred Oath class feature for how Channel Divinity works.

Hunt Down the Arcane. As an action, you can use your Channel Divinity to augment your magical detection. For the next 10 minutes, you know the presence of any spellcaster within 60 feet of you, along with the highest level spell they can cast.

Breaker of Concentration. As a bonus action, you can empower your strikes to cripple a target's mental state. For the next minute, all your successful attacks inflict a penalty to concentration saving throws equal to your charisma modifier (min 1).

Aura of Antimagic

7th- and 18th-level Oath of Antimagic feature

You radiate a menacing aura that weakens the connection to the weave around you. Creatures within 10 feet of you excluding yourself cannot cast spells that are equal to half your level in this class (rounded down) or lower. If a creature attempts to cast the spell the action is lost but the spell slot is not. For example, at 7th level creatures within 10 feet of you cannot cast fireball at 3rd level.

When you reach 18th level in this class, the range of the aura increases to 20 feet.

Superior Arcane Deflection

15th-level Oath of Antimagic feature

You have gained the ability to not only deflect but reflect magic damage that is directed towards you. When subject to an attack roll or saving throw that deals damage, you can attempt to deflect part of the magic back at the caster. As a reaction, you can take half damage from the magical effect and the creature that cast the spell must make a saving throw against your spell DC (the type of saving throw is the same as the spell cast). On a failed save, they take half the damage they dealt. 

You can use this feature a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.

Legendary Mage Killer

20th-level Oath of Antimagic feature

You become an avatar of death for magic users. Even Mystra would fear you, as you drain the very knowledge of spells with every attack. As a bonus action, you gain the following benefits for 1 minute:

• Creatures you hit that are forced to make concentration checks cannot use legendary resistances to succeed if they fail.
• You can sunder spells from the memory of creatures you hit. Once on each of your turns when you hit a creature, they lose access to one spell on their spell list. You can target a particular spell by naming it but if it is not on their spell list the effect is wasted. The spell returns to the creatures memory after this form ends or If you fall unconscious.
• Once while this form is active, you can force one concentration check you inflict to automatically fail.

Once you use this feature, you can’t use it again until you finish a long rest, unless you expend a 5th-level spell slot to use it again.