If you wanna see a really nice sacrifice deck check this outhttp://www.mtgvault.com/pyromaniac643/decks/sacraficial-vampires/
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Well there are a lot of changes you could make to make this better, also what kind of deck are you trying to make. But for now this is a nice deck.
You could also put in a Butcher of Malakir, but its very expensive to play but with the eldrazi spawns that shouldn't be a problem.
It's a very nice deck. I think if you wanted you could put in an Anowan, the Ruin Sage or Call to the Grave both work nicely for making people sacrafice creatures.
Instead of Shatter you could use Smelt or you could also put Into The Core. And instead of Day of Judgement use Shatterstorm, take out the Revoke Existence put in Voltaic Key to combo your Liquimetal Coating.Smelt: same thing as shatter but less cost.Into The Core: Exiles 2 artifacts, but cost much more.Shatterstorm: same cost but destroys all artifacts and they can't be regenerated.Voltaic Key: pay 1 and untap and artifact.