Sanguisuge (Blood magic, hemomancy)

A sanguisuge is someone with an intense and intimate connection with blood; perhaps they witnessed it often as a child, or they were simply blessed with such a connection at birth. 

Crimson Cadaver

You are able to leech the life from dead bodies around you. During combat, you can use an action to leech 2d4 health from a dead body. At 6th level, you can 3d4 total health from Crimson Cadaver, 4d4 at 14th level, and 5d4 at 18th level. When casting a spell that deals damage, you regain health to match 1/2 of the damage dealt.

Carmine Constiution

Your blood is more resilient to poisons and diseases than the average person. You have resistance to poison/disease. You gain +1 health with every level you gain in this class.

Sanguine Gaze

You have innate knowledge of the blood around you. You can magically detect any creature with blood, or any contain with any form of blood in it, so long as it is within 60 feet of you. You are able to sense impurities or diseases within blood.

Bloodforged Armory

At 14th level, you can use the blood around you form weaponry. It takes an action to conjure your weapon, however if you're using thrown/shot weapons you will not have to conjure more ammunition. 

All weapons follow their standard stat blocks, but deal poison damage. If there is no blood around you, you can spend an action to open a wound on yourself and use that to generate a weapon.

Cerise Anatomy

At 18th level, your body, mind, and soul, have fused with your blood. You may cast Cerise Anatomy once per day, and in one of two forms.

 

Cerise Anatomy: Bloodletting

You are able to leave your body and move through gaps as small as one inch, so long as you return to your body within 5 minutes. Blood does dry out, after all. You are capable of swapping bodies if you fully drain your cadaver. In your Cerise Anatomy: Bloodletting form, you have disadvantage on focus checks and ranged attacks. However, you have advantage on grapple checks and unarmed attacks, which deal piercing damage under Cerise Anatomy: Bloodletting.

Cerise Anatomy: Apotheosis

When casting Cerise Anatomy: Apotheosis, you gain three attributes. Cerise Anatomy: Apotheosis lasts for 5 minutes, or 3 turns in combat.

-A flight speed of 30 feet.

-All spell damage is converted into necrotic damage, including damage dealt by Sanguikinesis.

-Sanguikinesis.

Sanguikinesis: Sanguikinesis has three charges, which can be spent on each ability it has. Casting an ability over multiple turns consumes a charge for each turn. 

Sanguikinesis abilities:

Sanguikinesis: Seize- You can telekinetically latch onto a living being. See theTelekinesis spell.

Sanguikinesis: Crimson Calling- You call upon all of the blood you've spilled to fill the battlefield with it's essence, dealing 4d6 necrotic damage to all hostiles and healing allies by the same margin, including yourself.

Sanguikinesis: Reaper- You are able to deal 8d6 to any 3 hostiles within 20 feet of each other, and inflict the Poisoned status on them. Crimson Cadaver applies here. Sanguikinesis: Puppet- You grab hold of the blood in a creature (Large or under)'s body, and force them to perform an action. You cannot force them to cast spells if they have verbal components.