Path of the Hakeashar

Mage Bane: When you choose this path at 3rd level, you can feed on magic and siphon energy from all spell attacks directed towards you and convert that energy to empower your attacks.

Immediately after a creature casts a spell that targets you or includes you in its area of effect, you can use your reaction to gain a spell slot equal to the level of the spell cast. You can use this feature for all spells up to 5th level or lower. Once you reach your storage limit in spell slots (equal to your rage damage bonus) you cannot use this feature until you have expended spell slots.

While you are raging, you have advantage on all saving throws versus magic.

Barbarian Smite: Also at 3rd level, when you take the attack action, you can expend spell slot(s) to deal an extra 1d8 necrotic damage to the target, plus another 1d8 per level of the spell slot.

Arcane Senses: At 6th level, your well developed senses allows you to perceive magic around any creature or object within 30 feet of you. If you sense magic in this way, you learn its school of magic, if any.

Ravenous Barbarian: At 10th level, once per turn, when hit a creature using your Barbarian smite feature, you heal the number equal to the damage dealt. The creature must be able to cast a spell to benefit from this feature. Also, once per turn, when you have no spell slot(s) for your Barbarian smite feature, you gain one 1st level spell slot

Hakeashar Incarnate: Starting at 14 level, when you rage, you gain the ability to transform into a globular blood-red mist with claws (slashing 1d8), eyes, and fangs (piercing 1d8). Your barbarian features, and armor class remain the same and are in use while in this form.

Your only method of movement is a flying speed which is equal to your walking speed. You can enter and occupy the space of another creature. You have advantage on Strength, Dexterity, and Constitution saving throws. You can pass through small holes, narrow openings, and even mere cracks, though it treats liquids as though they were solid surfaces. You can’t fall and remain hovering in the air even when stunned or otherwise incapacitated.

While in the form, you can’t cast any spells, you can’t talk or manipulate objects, and any objects you were carrying or holding can’t be dropped, used, or otherwise interacted with.

Once you use this ability, you can't use it again until you finish a long rest