Lacedon Blood: Legends speak of certain ghouls who could not only ignore the fear of running water, but learned to thrive in it. You are immune to the acid damage caused by running water. In addition, you gain resistance to cold damage.
Prerequisites: 3rd level 
Blood Cost: 0 

Fury of Claws: Immediately after you take the Attack action to deliver an unarmed strike on your turn, you can spend 1 Blood to make two additional unarmed strikes with your Claws as a bonus action.
Prerequisites: 3rd level 
Blood Cost: 1

Assassin's Fangs: You may use your Bite attack against a surprised or unaware target, even if they don't meet the normal requirements for your Bite.

In addition, when you make a Bite attack with advantage, you may spend two or more Blood to deal 1d6 additional piercing damage for every 2 Blood spent. The maximum number of additional damage dice you can add in this way is equal to your Vampire level divided by 3 (rounded down)
Prerequisites: 3rd Level 
Blood Cost: Varies

Animalism: You can cast the Conjure Animals and Summon Beast spells.Casting Summon Beast costs 4 Blood. Casting Conjure Animals Costs 5 Blood. These are considered Undead rather than Fey.
Prerequisites: 5th Level 
Blood Cost: 4-5

Stench Aura (Not Imeplemented): You spend this Blood as a bonus action. For one minute after you spend this Blood, creatures that enter into a 10 foot radius around you for the first time make a Constitution saving throw. On a failed save, they are poisoned until they leave this radius. On a success or if they leave this radius, they are immune to this poisoned effect for 24 hours.
Prerequisites: 5th level 
Blood Cost: 2

Gnawing Hunger: Your feral nature manifests as the ability to extract nutrients out of any former living thing, but the nutrients in question are not always fulfilling. You can restore Blood from consuming dead flesh. This specialized Feeding does not restore any hit points, but does restore your Blood as if you had Fed off a living creature of that type.
Prerequisites: 7th level Assassin’s Fangs
Blood Cost: 0

Ghoul Pack (Not Implemented): Ghouls run in packs; it is only fitting that you lead your own. When you use For the Horde to create Ghouls, you can create one additional Ghoul without spending additional Blood. In addition, any Ghouls you summon add your proficiency bonus to their attack rolls and damage rolls.
Prerequisites: 11th level, For the Horde
Blood Cost: 0