Order of the Magebane

Blood Hunters of this sort are specialized in a fighting style  against spell casters, as the Hunter's Bane is enchanted with anti-magical properties. While this leaves them unable to learn magic themselves, they benefit from greater protection against magical effects.

Lesser Magic Dampening

When you join this order at 3rd level, you learn to protect yourself against lesser magical effects.

When you have your Crimson Rite active, whenever you are targeted by a spell attack, you may use your reaction to briefly bolster your magical dampening and add your Hemocraft die into your AC against spell attacks for the rest of your turn.

Spell Reversal

Beginning at 7th level, your anti-magical blood becomes more offensive. Whenever you succeed on a saving throw against a spell, you may use your reaction to rebound the magic back against the caster.

The caster needs to succeed a saving throw against their own Spell DC or suffer the effects of the spell.

You can use this feature a number of times equal to 1 + your Intelligence modifier. When you finish a long rest, you regain all expended uses.

Greater Insight

At 11th level, your senses are honed to perfection, allowing you to see through any magical effect with ease.

Non-magical and magical darkness within 60 feet of you have no effect against you and you have advantage in all Intelligence (Investigation or Arcana) and Wisdom (Perception and Insight) checks made against illusions and shapeshifting effects.

Greater Spell Dampening

At 15th level, the Hunter's Bane that courses through your veins grows stronger and more potent, providing greater protection against spells and their effects. You gain resistance against all damage from spells and magical effects.

In addition, when you are successfully struck by a spell attack or when you fail a spell saving throw, you may store the spell within your body. Until you finish a long rest, you may cast the spell within you once. The knowledge on how the spell works comes as you store it. When you cast the spell, you use the Spell Attack and Spell DC used by the original caster.

You have one use of this ability and regain the use of it whenever you finish a short or long rest.

Minor Spell Immunity

Upon reaching 18th level, you emit constantly a minor shield with anti-magical properties. You gain immunity to all spells that are 3rd level or lower, unless you wish to be affected by them.