Path of the Bloodkeeper

Your taste for blood has strengthened you in battle.

Blood Thirst

Beginning at 3rd level, you store 1/4 of the damage you take as Blood Charges, rounded up (min. your Con Modifier). When you rage, you create a Blood Shield equal to you Blood Charge, converting it into temporary hit points. The shield remains until all the temporary hit points are lost. In addition, when you kill a creature, you gain hit points equal to your Barbarian Level.

Spilling Blood

Beginning at 6th level, your Blood Shield creates a damaging aura around you. At the end of your turn while your Blood Shield is active, all enemies within 10 feet of you must pass a DC (15 + your Con modifier) Constitution Saving Throw to take half damage, or full damage if they failed the saving throw. The damage is equal to half the size of your Blood Shield. If the Aura kills an enemy, your Aura emits a second burst to damage everyone within the range an additional time, repeating for each enemy the aura kills during that turn.

Strength of Blood

Beginning at 10th level, you store 1/2 of the damage you take as Blood Charge instead of 1/4. In addition, your Blood Shields now combine when you rage instead of replacing the previous one (New temp hit points from Blood Shields add to current temp hit points if their origin was a Blood Shield).

Bloodkeeper's Wrath

Starting at 14th level, when enemies enter the aura from your Blood Shield, they must pass a DC (15 + your Con. Modifier) Charisma Saving Throw or they become frightened. You have advantage on attacks against creatures you frighten with this ability.