This is my pure black vampire deck. It is currently a work in progress. Still, in test runs it has proven to be pretty strong, even without all of the cards that I want for it.

Create fodder using Bloodline Keeper. Sacrifice one of the fodder tokens or Bloodghast to give Bloodthrone Vampire +2/+2. Get bonuses from any "when creature enters the graveyard" abilities such as Kalastria Highborn, Falkenrath Noble, or Blade of the Bloodchief.

Bring Bloodghast back from the graveyard using its Landfall ability so that you can sacrifice it again. For each Everglades card you draw you can utilize Landfall 3 times: once when you put down the initial Swamp, again when you play Everglades and have to pick up the Swamp as part of the casting cost, and yet again when you play the Swamp a second time.

Cast a spell or use an ability that causes you to gain life such as Kalastria Highborn, Vampire Nighthawk, Falkenrath Noble, Feast of Blood, or Blood Tithe. Trigger Sanguine Blood, causing your opponent to lose life.