I tried thinking of a deck name that was a tad more clever than what I have right now, but in fear of sounding dreadfully cheesy, I opted for the straightforward "Mono-Black Vampire Deck," which is exactly what you would think it would be.
My initial intention was to simply craft a thematic deck based solely on vampire creatures and spells. Fortunately, once I got all of the resources together and began playing the deck, it experienced a great deal of success amongst my friends.
My overall strategy is to get my Child of Nights and Vampire Nighthawks equipped with Blades of the Bloodchief, so not only am I gaining life through lifelink, but am building up powerful hitters. I also achieve building up counters on them by using my Instants and Sorceries to destroy/sacrifice target creatures, which creates a nice synergy with Blood Artist as well, allowing me to chip away.
Vampire Nocturnus assures that all my vampires are additionally buffed as well giving me all flyers. With Sanguine Bond and/or Exquisite Blood, my health total at the end of a match is usually upwards of 50+.
This is my first deck I've uploaded, so hopefully what I've typed to describe it makes some sense. Thanks for letting me share! (Still trying to craft a sideboard and would also love any comments you may have. Thanks!)