Not your average aggro vampires.
The mechanic i'm exploiting is Blood Artist and Havengul Vampire, with a sac engine like Bloodthrone Vampire and Falkenrath Aristocrat. I can also pour creatures out with Thatcher Revolt, and sac the tokens EOT -- which flourishes with all of the above.
Vile Rebirth gets rid of useless creatures in my graveyard, while also denying my opponent any benefit from the Undying ability. The tokens can also be used with the sac engines, or to chump block.
Tell me what you think, i just brewed this up, so point out any plot-holes, as it were :) thanks for your help in advance!