This deck forces your opponent to sacrifice his or her creatures at the cost of your own, But each time a creature is sacrificed you can grow stronger with Mortician Beetle or the flying Vulturous Zombie. Savra, Queen of the Golgari and Butcher of Malakir makes your opponent sacrifice even more creatures. You alson can recover life with Savra, Blood Artist, Marrow Chomper, Rite of consuption and Disciple of Griselbrand.
I decide to put some Woodland Cemetery. It's good when you need forests or swamps. I also add Cemetery Puca to the maybeboard, i don't known if it will work well in this deck, what do you think? Rite Of Consuption or Altar's Reap, which one is better?
Traded Carrion for Golgari Germination, I think it can be more useful near Savra, queen of the golgari