Path of the Brute

The Path of Berserker barbarians hail from tribes that believe it is more important to protect your friends and family rather than kill and harm your enemies. But when it comes to harming, they are not afraid to engage with their fists.

This subclass focuses on adapting your rage to focus towards tanking more damage, improving your rage, and making your fists your weapons.

Brute force

Your Unarmed Strikes become weapons, they deal 1d6 + your strength modifier, this damage is increased to 2d6 at level 6, 3d6 at level 14.

Defensive Rage

Beginning at 3rd level, your body can adapt to a situation it is in on the fly. Whenever you rage you may pick an additional type of damage that is not psychic, bludgeoning, slashing, or piercing to become resistant to. 
At level 14 you can pick another damage type to become resistant to or pick a damage type that is not psychic to become immune to, if you do this you lose your second resistance.

Get behind me!

Starting at 6th level, you are determined to help your friends, even if it kills you. When an ally is about to be hit by an attack that doesn’t require a saving throw you can move up to half of your movement to get in between your ally and the attack, if you can make it you take the full damage, if you are raging you may move your full movement.

You can use this feature an amount of times equal to your constitution modifier (minimum of 1)

Power nap

Whenever you finish a short or long rest, you gain temporary hit points equal to 4x your barbarian level. Additionally during a short rest you can give your allies a hit die by expending 2 of yours.

Offence is the best Defence

Some situations call for a change in plans, on your turn you can take a -5 penalty to AC and all of your attacks gain +15 to damage and you can make 3 attacks as part of the attack action. You cannot have both of the effects of Offence is the best Defence and Defence is the best Offence up at once and if you leave your defence form all temporary hit points are lost.

Defence is the best Offence

You can take a -6 penalty to damage and attack roles and gain temporary hit points equal to 5x your barbarian level(these stack with hit points gained through Power Nap) as well as a +3 to AC.
If you leave this form all temporary hit points are lost.