Your supernatural rages are fueled by one ever present, burning desire—revenge.  Whether it's for a wrong done to you, a slight to your families honor, or an old blood feud, you refuse to give up before your revenge is enacted.

Mark of the Nemesis

Starting when you choose this path at 3rd level, you can mark an enemy as your nemesis when you go into a rage.  For the duration of your rage, your melee weapon attacks deal 2d6 more damage per turn to your nemesis, and ignore any resistances and immunities.  This feature can only be used once before taking a long rest, and if your target dies, the effect ends early.

Unbridled Determination

Beginning at 6th level, you can’t be restrained if you have marked a nemesis.  This includes the paralyzed condition but not the petrified condition.

One-Minded Pursuit

At 10th level, if you mark an enemy as your nemesis, you gain advantage on all attack rolls against it, and disadvantage on attack rolls against any other creature.  In addition, you can move an extra 10 ft. each turn, as long as it's towards your nemesis.  This movement increase is doubled by Dash.

Revenant

Starting at 14th level, if you are killed while fighting an enemy you marked as your nemesis, you return to as an undead revenant.  You keep your normal statistics, but you gain the following traits: 

Regeneration. You regains 10 hit points at the start of your turn. If you take fire or radiant damage, this trait doesn't function at the start of your next turn. Your body is destroyed only if your start your turn with 0 hit points and don't regenerate.

Rejuvenation. When your body is destroyed, your soul lingers. After 24 hours, your soul inhabits and animates another corpse on the same plane of existence and regains all its hit points. While your soul is bodiless, a wish spell can be used to force it to go to the afterlife and not return.

Turn Immunity. You are immune to effects that turn undead.

Vengeful Tracker. You know the distance to and direction of any creature you have marked as your nemesis, even if the creature and you are on different planes of existence. If the creature being tracked this way dies, you know.

Once your target dies, you must make a single death saving throw.  On a success, your corpse is resurrected as if by a true resurrection spell.  On a failure, you die and can't be resurrected except for by divine intervention.