Way of The 9 Hells

You are a relentless solider of Hell

Armored Destroyer

Starting at 3rd level, you gain proficiency in heavy armor and firearms and you can enter into your rage while you are wearing heavy armor.

Additionally, anytime you score a critical hit on a creature while you are raging they are stunned until the start of your next turn

Mindless Rage

Beginning at 6th level, you can’t be charmed or frightened while raging. If you are charmed or frightened when you enter your rage, the effect is suspended for the duration of the rage.

Rip and Tear

Starting at 10th level, if you are within five feet of a stunned or paralyzed creature, you can use action to brutalize them, dealing three times your Barbarian level in bludgeoning damage  to the creature. This damage can not be reduced in any way.

Retaliation

Starting at 14th level, when you take damage from a creature that is within 5 feet of you, you can use your reaction to make a melee weapon attack against that creature.