Way of the Sanguine Form v1.2

Monks of the Way of the Sanguine Form have learned and trained to use their ki to manipulate blood to their advantage when fighting against their foes. They've studied and practiced these techniques for many years, perfecting their form as they go.

Deadly Strikes When you choose this tradition at 3rd level, your unarmed strikes become deadly and more damaging. In addition to normal bludgeoning damage, your unarmed strikes deal either piercing or slashing damage. You decide which extra type of damage your strikes do after a short or long rest. If a creature has immunity to one type of damage, it has immunity to the strikes. If it has resistance to one type of damage or both, it only applies the resistance once. If it has vulnerability to one type of damage, it becomes vulnerable to those strikes. If a creature is vulnerable to one type of damage, but resistant to the other, the damage is calculated normally.

Bloodburn At 3rd level, you can use your ki to weaken your foes. When you take the Attack option, you can use 1 ki point to turn one of your attacks into a bloodburn attack. This attack is a melee spell attack that uses your Wisdom modifier for the attack roll. The attack deals necrotic damage equal to your martial arts die + your Wisdom modifier. If the attack hits, you can spend an additional ki point to grant the creature disadvantage on their next saving throw until the start of your next turn. You can use this feature a number of times equal to your Wisdom modifier (a minimum on once). You regain any expended uses when you finish a short or long rest.

Blood Siphon At 6th level, you can siphon some health from your foes to heal yourself. Once per short rest, whenever you hit with a Bloodburn attack, you can spend 3 ki points to regain hit points equal to the damage + your monk level. At 13th level, you can use this feature twice per short rest.

Blood Shield Starting at 11th level, you can sacrifice some of your vitality to protect yourself from outward damage. As an action, you deal necrotic damage to yourself equal to your monk level and gain resistance to one type of damage, except force damage. This damage ignores your resistance and immunity. The resistance lasts for 10 minutes and you can only have one resistance at a time. This self inflicted damage reduces your maximum hit points until you take a long rest.