Path of The Undead

Your rage burns so bright that it can raise those near you and even you from the dead. The undead will bend their will to you and, lend their powers in a dire need.

Undead Rage

Undead Rage Starting when you choose this path at 3rd level, you can go into an Undead rage. If you do so, for the duration when you drop a creature to 0 hit points you can raise that creature as an undead for the duration of your rage that has a cr of 1/3 your barbarian level or below.

Undead Presence

Starting at 6th level, when a creature is killed in a 15 ft radius around you, it is raised as an undead for as long as your rage remains. You can only control up to a total of a cr of 5.

Necrotic Strike

Starting at 10th level, when an enemy creature is hit by an attack you made it must succeed on a Constitution saving throw (DC equal to 8 + your proficiency bonus + half the damage dealt on the attack) or be marked as an undead. If a creature is marked 4 times and is under 100 hit points it becomes an undead for you to control. 

Become Undead

Starting at 14th level, if you are killed outright when raging you become an undead. As an undead, you cannot be charmed or frightened. You do not need sleep, food, or water. You do not lose any of your racial abilities while undead. Also, when you hit an enemy creature with a melee attack, that creature must succeed on a Wisdom saving throw (DC equal to 8 + your proficiency bonus + your Constitution modifier) or be stunned for 1d4 rounds.