Blood Mage

Blood Magic. The Blood Mage uses its hit dice to cast and deal damage with it's spells.

Corpse Steal. The Blood Mage can steal blood from corpses, up to 4 of its hit dice.

Blood Steal. The Blood Mage can pull blood out of someone other than themselves. As an action the Blood Mage chooses a creature that has blood within 60 feet. The creature must succeed a Constitution Saving Throw against the Blood Mage's class Spell Save (DC 15) or the Blood Mage can siphon up to 2 of the creatures hit dice, using it to power their spells and dealing damage equal to the damage of the hit dice rolled. A creature who is missing hit points has disadvantage on the save. Or you can cast Blood Control. The target creature automatically fails if they are unconscious or willing.

Blood Control. Instead of pulling hit dice out of the target, the Blood Mage can instead hold the creature and keep it paralyzed. The target can attempt to succeed against the save at the end of their turns.

Blood Spells.

Blood Armor (4 Hit Dice) V, S: As an action you control blood to harden into armor. This armor can cover you or any other medium sized creature. This armor is considered light and has an armor class of 12 + Dexterity bonus.
(2 Hit Dice) Increase Armor by +1 to a maximum of +4

Blood Weapon (2 Hit Dice) S: As a bonus action you form a weapon made entirely of blood. This weapon can take the form and statistics of any simple weapon and is considered magic for the purposes of overcoming resistance. Ammunition for ranged weapons cost 1 hit point each.
(2 Hit Dice) You can create Martial Weapons
(2 Hit Dice) You increase the attack bonus and damage by +1 to a maximum of +3

Cleanse (1 Hit Dice) S: As a bonus action, You use blood to heal an ally 1d4 Hit points each round for 1 rounds. You cannot heal yourself with your own blood. This spell does not require concentration.
(1 Hit Dice) Increase the number of rounds by 1
(2 Hit Dice) Increase the amount of dice by 1
(3 Hit Dice) Increase the die type by 1
(4 Hit Dice) Remove a poison
(6 Hit Dice) Remove a negative condition effect
(10 Hit Dice) Remove a disease

Multiattack. The Blood Mage makes two attacks, one with it's Blood Shortsword and the other with it's +1 Blood Dagger.

Blood Shortsword. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 3) piercing damage. (4 Hit Dice to create)

+1 Blood Dagger. Melee or Ranged Weapon Attack: +7 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 7 (1d4 + 4) piercing damage. (4 Hit Dice to create)

+3 Blood Greatsword Melee or Ranged Weapon Attack: +7 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 15 (2d6 + 5) piercing damage. (10 Hit Dice to create)