Mage Bane

You reject the facade of magic, seeing it as nothing more than reckless shortcuts to power, pathways to abuse, and bondages to the otherworldly; The spells of the Weave. The blessings of the gods. The boons of nature. The gifts of patrons. The might of oaths. The surges of psionics.

You will rip away these unearned abilities, to force your foes to face you as their true selves without such smoke and mirrors. For there is no expression of true skill and self-mastery greater than physical prowess, and the cold steel of weaponry in your hands. 

Level 1: Magic Dispersion

Up to twice per short rest, as a reaction you can reroll a saving throw to a spell that hits you or you fall in the area of effect of. You take half damage even if the spell dc roll failed.

You get additional uses of this ability per short rest at levels 5, 11, and 17.

All uses of this ability rechargers every short or long rest.

Level 3: Anti-Magic Aura

Once per long rest, as an action you begin emitting an anti-magic emanation around you in a 10ft sphere that lasts for 1 minute.

Within that sphere, individuals and objects of your choosing have their magical properties removed depending on your current fighter level:

Level 3: Objects of common rarity and under have their magical abilities and properties removed. Spells of 1st level and under automatically fail to work, and any 1st level or under spell effects currently active are disabled permanently, unless a recast of the spell is used after this aura is gone.

Level 7: This aura increases by 5ft (15ft total) and affects objects of uncommon rarity and under, as well as spells of 3rd level and under.

Level 10: This aura increases by 5ft (20ft total) and affects objects of rare rarity and under, as well as spells of 5th level and under.

Level 15: This aura increases by 5ft (25ft total) and affects objects of very rare and under, as well as spells of 7th level and under.

Levels 18: This aura increases by 5ft (30ft total) and affects objects of legendary rarity and under, as well as spells of 9th level and under.

This ability rechargers every long rest. 

Level 7: Arcane Redirect

Once per short rest, as a reaction you can absorb a spell that is cast that falls within the affected categories and range of your Anti-Magic Aura at the current level.

You may then redirect it elsewhere as if you were casting the spell. You use the spell DC and spell casting ability of the original caster.

This ability can work on the spell of an ally, potentially leading to a successful spell dc roll or hit roll if a failure would have occurred.

You gain additional uses of this ability per short rests at fighter levels 10, 13, 16, and 19.

You regain all uses of this ability every short or long rest. 

Level 10: Weave Sense

You passively have Detect Magic and Identify active on you at all times, which does not require verbal, somatic, or material components.

Level 15: Spell Break

Once per short rest, as a reaction when a spell occurs that requires concentration you can automatically force that spell to fail via the caster's concentration breaking.

You gain an additional use of this ability at fighter levels 18 and 20.

You regain all uses of this ability every short or long rest. 

Level 18: Mystical Annihilation

Once per long rest, as an action you can target a single creature and sever their magical abilities for the next 24 hours. In that time, any spells the target attempts to cast automatically fails.

You regain this ability every long rest.