Order of the True Blood

A step above other blood hunters. Rather than just using blood magic to fight off creatures of darkness, they use their powers as well.

Weaknesses: You take 10 damage every turn you are in contact with running water, become vulnerable to radiant damage.

Sense Holliness

At 3rd level you can sense anything holy coming towards yourself.

Night Hunter

At 3rd turn into a bat, and also gain the ability to take 1d6 of health from targets in human or bat form.

Misty Shadow

Turn into a black mist once a day after a long rest. This can be used to dodge attacks or go through holes.

Regenerate

 At 11th level as a bonus action, after drinking blood you can regenerate 10 more health.

You can't do this in sunlight.

Vampire's Strike

 At 15th level when in battle, you can do an unarmed strike that deals 1d4 bludgeoning damage + 1 for every time you've drank blood in the battle.

Enthrall

 At 18th level become able to enthrall a humanoid once a day after a long rest. They will do your bidding, and can't disobey after being caught.

This will only work on medium sized humanoids, and you can't have more than 1.