Barbarian path: Cannibal

Fear not the Dark my friend, and let the Feast, Begin...

For some, simply defeating their opponent isn't enough. For some, total dominace must be acheived. Whether a ritual consumption to gain their strength, or just a horrific savage indulging themselves, the path of the cannibal rewards those with a darkness within them, and an insatiable appetite.

Consume

At your 3rd level when you take this path, you can consume the flesh of humanoids to gain benefits. You heal for your constitution modifier + half your barbarian level and gain bonus damage equal to your constitution modifier for 1 hour. You cannot stack the damage buff when using Consume within the same hour

Just a Bite

Also at 3rd level, you when reduce a humanoid enemy to 0 HP while raging, you can take a bonus action to quickly eat a chunk of the creature for the Consume benefits.

Any other humanoid enemies must make a wisdom saving throw or become frightened of you for 1 turn. The Save DC is 8 + Your charisma modifier + your proficiency bonus.

You must complete a short or long rest before using this feature again.

A Grim Feast

At 6th level, you may prepare a ritual feast, to truly savor the meat and see visions of the victim's life.

The ritual takes 1 hour to complete. While eating, you scour through their memories, searching for whatever imformation that you seek. You also heal for 2d8 + half your barbarian level and gain bonus damage equal to twice your constitution modifier for 3 hours after the ritual. The damage buff overides Consume if active.

You must finish a long rest before using this feature again\

Eager to Feed

At 10th level, while raging you have advantage on all attacks against enemies with half health.

Unsavory Fortitude

At 14th level, whenever you use Consume or A Grim Feast, you gain temporary hit points equal to the healing, have advantage on Constitution and Strength saving throws, and you are immune to being charmed and frightened all for the duration of the respective feature.

Credit: Marko-Djurdjevic