Path of the Dark Avatar

Spending time in the Shadowfell alone has allowed you to link to a shadow version of yourself. This Dark Avatar can transfer life essence between you and other creatures and has been your only friend for sometime.

Your Dark Avatar is a shadowy version of yourself and can be manifested at will and can be made visible when required, your DM may also decide when the Dark Avatar appears. Your Dark Avatar cannot be more than 30 ft. from you.

The Dark Avatar may attempt to communicate with you via dreams or another medium, although their motivations are unclear.

Dark Sacrifice

3rd-level Path of the Dark Avatar feature

As an action, you can sacrifice one hit point and transfer it via your Dark Avatar to another creature within 30 ft. 

You can use this feature a number of times equal to your Constitution modifier, and you regain all expended uses when you finish a long rest.

Transfer Harm

3rd-level Path of the Dark Avatar feature

While raging, you can use your reaction to send your Dark Avatar to absorb some of the damage dealt to an ally you can see within 30 ft. The number of hit points that can be absorbed is half the damage dealt (rounded down), up to a maximum of 5 times your Barbarian Level. You take this damage initially, then can then use your next bonus action to send the Dark Avatar to attempt to transfer the damage to another creature. 

The creature to whom you are attempting to transfer the damage must make a Constitution save, the DC equals 8 + your proficiency bonus + your Constitution modifier. On a fail, they take the damage absorbed during the reaction and your hit points are restored by the same number. On a save, or if no attempt is made to transfer the damage during the next bonus action, the Dark Avatar releases the damage into you permanently. Damage taken due to Transfer Harm be healed as normal.

The damage type is not changed at any point during the transfer. Conditions and other effects of the triggering damage are not affected and are not transferred.

You can use this feature a number of times equal to your proficiency modifier and regain all uses on a long rest. 

Borrow Essence

6th-level Path of the Dark Avatar feature

Your Dark Avatar can borrow life essence from other living creatures. While you are within 30ft. of another creature you have advantage on death saving throws. Life essence can only be borrowed from living creatures, not undead or constructs.

Shadow of Life

10th-level Path of the Dark Avatar feature

Your Dark Avatar can use an action to return a creature which has been dead for less than a minute to 1 hit point by sacrificing your health. Your hit points and hit point maximum are reduced by the creatures maximum number hit points. Your can be healed up to your new hit point maximum. Your hit point maximum cannot be restored by any means other than a long rest.

This feature can be used once per long rest.

Transfer Harm Unleashed

14th-level Path of the Dark Avatar feature

You can now choose how much damage is captured as part of Transfer Harm. The minimum number of hit points that can be affected is 1, the maximum is the same as your hit point maximum.

The number of hit points absorbed and transferred during each use of Transfer Harm must be identical.