Frenzy

Starting when you choose this path at 3rd level, you can go into a frenzy when you rage. If you do so, for the duration of your rage you can make an additional melee weapon attack when you take the attack action on your turn. When your rage ends, you suffer one level of exhaustion. While frenzied, you ignore the effects of all levels of exhaustion.

Mindless Rage

Beginning at 6th level, the joy of battle wipes out other influences. You can't be charmed or frightened while raging. If you are charmed or frightened when you enter a rage, the effect ends.

Intimidating Presence

Beginning at 10th level, you can use a bonus action to terrify an enemy. Choose one creature that can see or hear you within 30 feet of you. It must succeed on a Wisdom saving throw (DC 8 + your proficiency bonus + your Charisma modifier + your Strength modifier). On a failed save, the creature is frightened of you until the end of your next turn. This effect ends if the creature ends its turn more than 60 feet away from you. If the creature succeeds on its saving throw, it is immune to this feature for 24 hours.

Adrenaline Rush

Starting at 14th level, if an enemy reduces you to 0 hit points while you are raging, you can choose to instead be reduced to 1 HP. When you do so, you gain temporary hit points equal to twice your barbarian level that last until the end of your rage. You immediately become frenzied if you aren't already. After that frenzied rage ends, all levels of exhaustion that you have are removed. You can use this feature once per long rest.

You can choose to drop to 1 hit point in this way once per long rest.

Viashino Slaughtermaster, Raymond Swanland