Path of the Doom Slayer

In the first age, in the first battle, when the shadows first lengthened, one stood. Burned by the embers of Armageddon, his soul blistered by the fires of Hell and tainted beyond ascension, he chose the path of perpetual torment. In his ravenous hatred he found no peace; and with boiling blood he scoured the Umbral Plains seeking vengeance against the dark lords who had wronged him. He wore the crown of the Night Sentinels, and those that tasted the bite of his sword named him... the Doom Slayer.

Armored Destroyer

Starting when you choose this path at 3rd level, you gain proficiency in heavy armor, firearms, and still gain the benefits of rage even if you are wearing heavy armor.

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

Forged in Hell

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

Beginning at 10th level, if you are within 5ft of a paralyzed or stunned creature, you can use your bonus action to brutalize them. When you use this bonus action you deal three times your barbarian level in bludgeoning damage to that creature. This damage cannot be prevented in any way.

Empowered Rage

Starting at 14th level, when you enter your rage you choose and gain one of these benefits until your rage ends:

•  You treat any roll on a damage dice of 3 or less as a 4.
•  You gain resistance to all damage types except psychic.
•  Your speed increases by 20 and your jump distance is tripled.
•  Your unarmed attacks count as magical for the purpose of overcoming damage resistances, and deal1d10 bludgeoning damage. You can make a third attack each turn as long as all of the attacks you make are unarmed.