you spill blood to help your allies nothing like some good ol fashion self sacrafice. 

share the pain

as an action on your turn you can roll your hemocraft die and take damage equal to the number rolled and choose a creature within 30ft they either heal the number rolled on the hemocraft die or you make a ranged attack roll against them adding the number rolled on your hemocraft die and on a hit and inflict a unempowered blood curse on them.

honor in pain

Beginning at 3rd level, whenever you take damage from a creature within 30ft of you you can expend an reaction to roll your hemocraft die and deal that much damage to the triggering creature.

deadly sacrafice

Upon reaching 7th level,as an action you can roll hemocraft die 3 times and take damage equal to the total all creatures other than you must make a dex save (dc 10+your proficiency bonus+intelligence mod) or take radiant damage equal to 3 times the damage you took or half as much on a successful save if you roll the maxium amount possible on a die using this you cn either choose to double or half your result.

Brand of Sundering

Beginning at 11th level, your Brand of Castigation now exposes a fragment of your foe’s essence, leaving them vulnerable to your Crimson Rite. Whenever you damage a branded creature with your Crimson Rite, your weapon deals one additional hemocraft die of rite damage. In addition, the branded creature can’t move through creatures or objects.

Blood Curse of the martyr

At 15th level, you’ve honed your hemocraft to tear wicked influence from your allies, punishing those who would infiltrate their body and mind. You gain the Blood Curse of the martyr  for your Blood Maledict feature. This doesn’t count against your number of blood curses known.

blood curse of the martyr

the targeted creature must make a con save or be affected by this for 1 minute during this time whenever you would roll your hemocraft die and take that much damage you take half as much damage and all creatures cursed by this take the amount of damage you took

empowered

you take no damage instead of half and the target takes the damage you would have taken it takes twice  the normal damage to empower this curse 

Rite Revival

Upon reaching 18th level, you learn to protect your fading life by absorbing your blood rite. When you are reduced to 0 hit points while you have an active Crimson Rite, but don’t die outright, the rite ends and you drop to 1 hit point instead. If you have rites active on multiple weapons, you choose which one ends.