Path of the Killer

Some barbarians care about nothing other than killing their enemies, many call these barbarians evil, they call themselves efficient. these killers are ruthless and cut down their enemies with unusual calmness for a barbarian.

Killing Spree

Starting when you choose this path at 3rd level, you can go into a cold-blooded killing spree when you rage. If you do so, the damage bonus from rage is doubled and your rage will end at the end of your next turn. If you reduce a creature to 0 hit points during a killing spree, the duration of your rage is extended by one round.

Psychopath

Beginning at 6th level, you have advantage on all Wisdom, Intelligence, and Charisma saving throws while raging.

Butcher

Beginning at 10th level whenever you successfully hit a creature with a melee weapon attack while raging, the creature's speed is reduced by 10 feet until the start of your next turn. Additionally, whenever you successfully hit a creature whose speed has been reduced with a melee weapon attack while raging, the creature begins to bleed out and loses 5 (1d10) hit points at the start of each of its turns due to an infernal wound. Each time you hit the wounded target with a melee weapon attack while raging, the damage dealt by the wound increases by 5 (1d10). Any creature can take an action to stanch the wound with a successful DC 18 Wisdom (Medicine) check. The wound also closes if the target receives magical healing. A creature without blood instead takes 11 (2d10) damage of your weapon's damage type.

No Escape

Starting at 14th level, whenever you score a critical hit against a creature while raging, or successfully hit a creature with an opportunity attack while raging, the target becomes paralyzed for one minute. The target can attempt a Constitution saving throw (DC equal to 8 + your Constitution modifier + your proficiency bonus) at the end of each of its turns, ending the paralyzed condition on itself on a success.