Path of the Spellrender

Spellrender barbarians channel their rage into not only potent power, but cantrips and even spells, thriving off of the conflict that both mindless rage and concentrated magic can have upon the mind. 

Spellrender barbarians are uncommon but potent warriors, spawned thanks to the mutations of the Shatter. A Spellrender Barbarian typically targets a creature spawned by the Shatter to destroy, these creatures being demons, aberrations, and the undead. 

When the Shatter ended, Heinz Hellblade began to bless certain warriors of the Material Plane, turning them into Spellrender Barbarians, executing his fiendish will to enforce that the Hell Invasion would never happen again.

Slayer

As the slayer, you can either gain a bonus to your speed (+10) or attack rolls (+2), but not all at once. You gain the ability to learn one cantrip from the warlock, wizard or druid spell lists. This spell must consist of an attack roll and must deal damage, and each time you take another level in Barbarian, you can change your chosen cantrip. 

Attack Bonus

Your melee and ranged attacks have a +2 bonus. 

Speed Bonus

Your movement speed gains a +10 bonus.

Rage of the Empowered

Starting when you choose this path at 3rd level, you are no longer unable to cast cantrips while you rage. While raging, you can cast your chosen cantrip as one of your attacks whenever you take the Attack action on your turn. 

Eldritch Blow

Starting at 6th level as a bonus action, you can imbue one melee weapon of your choice with the arcane power that is your rage. You can only use this feature two times before needing to take a short/long rest.

For as long as you are raging, the chosen weapon becomes your arcane focus, and deals an additional 2d4 force damage on a hit. This damage increases to 2d6s at 10th level, and then to 2d8s at 14th level.

True Hatred

Starting at 10th level, you choose one of the two below features:

Additional Arcana. You gain one 1st level spell from the druid, warlock or wizard spell lists, of which you can cast as many times per short rest equal to your constitution modifier. Constitution is your spellcasting ability modifier for this spell. 

Hateful Critical. Attacks against fiends, undead and aberrations get critical hits on rolls of 19 or 20. While raging, you instead get critical hits on those same creatures on rolls of 16-20 instead.

Additional Arcana

Starting at 10th level, you gain one 1st level spell from the druid, warlock or wizard spell lists, of which you can cast as many times per short rest equal to your constitution modifier. Constitution is your spellcasting ability modifier for this spell. 

Hateful Critical

Starting at 10th level, attacks against fiends, undead and aberrations get critical hits on rolls of 19 or 20. While raging, you instead get critical hits on those same creatures on rolls of 16-20 instead. 

Scathing Resilience

Starting at 10th level, you gain resistance to fire damage and resistance to bludgeoning, piercing and slashing damage from weapons that aren’t adamantine. In addition, while you are raging, you can cast and concentrate on spells of 1st level.

Wrath of the Sunderer

Starting at 14th level, as a bonus action when you successfully damage a target with a melee weapon attack, you can sever their connection to magic temporarily. The target is paralyzed and cannot cast spells or use spell-like effects until the end of your next turn. When a creature affected by this feature is brought to 0 hit points, you regain 1d4 uses of your Rage and regain one use of your Eldritch Blow.