3 Black Dragon
6 Minor Vampire
6 Steal
6 Devourer
2 Nightfall
2 Dusk Mantle
1 Vampire Stiletto
12 Obsidian Pillar
(I'm quoting the deck simply as a reference, so I don't have to keep scrolling up and down to check it. >.<")
First off, it really depends on how you like to play. Here are a couple different builds you could use.
6x Dragons
6x Devourer
2x Steal
3x Drain Life
13x Pillar
You could add the Vamp Stiletto and take out a Pillar, if you want.
Another build would be more focused on the Vampires and gaining back the life you lost. It's slower, but seems to have a higher win rate.
6x Vampire
4x Devourer
1x Vampire Stiletto
3x Steal
4x Drain Life
12x Pillar
Mark of Darkness on both, of course, lol.
Now, I'm not saying that you NEED to follow these builds, but these both work pretty well.
I hope that helps. =D