Order of the Coven

Dealing with vampire blood can be a dangerous business. It is hard to procure from a vampire and then dangerous to ingest. The Order of the Coven rarely cares about dangers and specialize in using vampire blood during the hunter's bane. They become part vampire and that affects them more and more as their extended lives go.

Vampiric Bite

Starting at 3rd level, having vampiric blood makes a bloodlust that can heal. It has been a way for the Order of the Coven to recoup from hard battles.

Bite a creature with blood to drain their life to replace yours. Make a melee attack with either strength or dexterity modifiers. The bite deals 1d8+ your CON modifier necrotic damage and heals you for the same amount. At 11th level, this increases to 2d8+ your CON modifier. Using this more than once between long rests has negative side effects since you are not full vampires. The second time you become poisoned and also healed and a third time you become incapacitated.

Attributes of the Ageless

Starting at 3rd level, the vampire blood you were given has effected your body in a few ways.

You gain an indefinite lifespan but you still feel the effects of slowed old age. You also gain resistance to necrotic damage.

Bloodsense

Starting at 7th level, you can enter a trance as an action to sense all creatures with blood within a mile for 1 minute.

Brand of the Thirst

Starting at 11th level, a creature branded by your Brand of Castigation must make an INT saving throw or attack a creature you can see at the start of its turn.

Blood Curse of the Swarm

Starting at 15th level, you can now use the Blood Curse of the Swarm. This uses your Blood Maledict feature.
Blood Curse of the Swarm
As an action, you cause a creature to be swarmed by bats of their imagination. They are blinded beyond 15ft.
Amplify: All attacks by the target have disadvantage.

Vampiric Lord

Starting at 18th level, you can cause undead to follow your word. As an action you can cause an undead with a CR of 5 or lower make an INT saving throw or become under your control for 24 hours an undead with an INT of 5 or lower automatically fails this save. You can only use this once before a long rest.