Path of The Pain Bearer

Pain bearers are extremely superstitious they believe that for one to heal they must bear incredible pain, this does heal them from physical poisons and intoxicants however they also believe that this will cure their mental pain, because of this their ancestors learnt to make that blood into terribly sharp claws and the blood can make the imperfections in their weapon’s blade become filled turning the weapons to be extremely powerful

Blood Sharpening

Starting at 3rd level when you choose this path you learn to use blood you lose to bring more pain to your enemies, when you go into a rage you choose to lose 2/3 of your blood leaving you at 1/3 blood, the 2/3 of your life force that you lost clumps around your hands and weapons turning yours hands into sharp blades and your blades will turn into blades that are sharpened, when you rage and drop to 1/3 of your max hp you get a bonus to attack equal to 1/3 your barbarian level rounded down (minimum 1) and bonus to damage equal to that many d8 + con modifier of necrotic damage all whilst raging.