I dont understand the ravenous demon or the fakenrath torturer, i would swap them out for as many bloodline keeper as well an some doomed travelers, id also swap break of day and 2 increasing devotion for 2 oblivion rings and 3 of lingering souls and 3 midnight haunting, i know it doesnt have flashback but it still can be played at the end of your opponents turn so you can have a couple extra swingers, i would also consider dropping some of the boost enchantments and gather the townsfolk, for possibly elesh norn or some black control just my take on it

The idea of the Ravenous Demon/Falkenrath Torturer is that they both get an edge when humans are sacrificed. If I decided to use Bloodline Keepers, I'd need to use more vampire-token generators than just that and Sorin.

What about adding some control, like Doom Blade and Black Sun's Zenith. Maybe Tribute to Hunger or Geth's Verdict?

You could even add some discard control.

Really well put together deck. Only change, is switch 2 and the third Falkenrath Torturer into a Timely Reinforcements.

Personal Sanctuary will help you keep that demon in check and save you dudes .

Midnight Haunting might be good to include. It doesn't have the flashback that Lingering Souls has but it can also be cast at instant speed.

This deck is great! +1