Blood Sorcerer

Your innate magic has allowed you to manipulate the very life essence of yourself and those around you. You can bend the flow of blood to your will.

Blood well

At 1st level, you gain resistance to necrotic damage. In addition, whenever you expend a hit die during a short rest, you can add your charisma modifier to the die rolled. You can use this feature a number of times equal to your charisma modifier. Alternatively, you can expend a hit die as a bonus action and add the number rolled to a spell attack or damage roll. You can do this after you roll the attack but before you know the result. You can no longer use that hit die until you take a long rest. Whenever you expend a hit die in this way, your maximum hp is reduced by the number rolled. You regain all uses of this ability at the end of a long rest.

lifespring

At 6th level, you can expend one of your hit die as a bonus action to gain 2 sorcery points. Whenever you expend a hit die in this way, your maximum hp is reduced by the amount rolled. In addition, you can expend a sorcery point as a bonus action to regain 1 hit die up to your maximum number of hit dice.

essence tether

At 14th level, you can link your being to those around you. As an action, you can target a number of creatures within 60 feet of you equal to your charisma modifier. Each creature must make a constitution saving throw against your spell save DC. On a failure, the target takes necrotic damage equal to your sorcerer level and you heal for half the damage dealt. On a success, the target takes half damage and you do not heal from the damage. You can use this feature a number of times equal to your charisma modifier. You regain all uses of this ability at the end of a long rest.

Sanguine resilience.

At 18th level, you gain immunity to necrotic damage. In addition, whenever you take damage, you can use your reaction to regain a sorcery point. You can use this feature a number of times equal to your charisma modifier. You regain all uses of this ability at the end of a long rest.

Origin spells

As part of your sorcerous origin, you learn additional spells at certain levels. These spells do not count against your known spells and are considered sorcerer spells for you. You learn the following spells at the specified level: 

1st Level- Blood armor

3rd Level- Blood pool

5th Level-Vampiric touch 

7th level-Vulmon's Mutation