Plz Help with my W/B Deck

[Agrus Kos, Enforcer of Truth]

The deck is a W/B Enchantment Extort Deck. I have most of the cards in the deck except {Fiendslayer Paladin} (I have one), {Sanguine Bond}, {Blood Baron of Vizkopa} and {Godless Shrine}. I am looking for suggestions to make the deck better but please keep in mind that I am on a budget. Also if you have any of the above mentioned cards and are willing to sell, please PM me.

[Hunteroffire9]

 {Obzedat, Ghost Council}, {lingering souls}, {tithe drinker}, and { orzhov charm} are all good.

[Agrus Kos, Enforcer of Truth]

I forgot to post the deck link:
http://www.mtgdeckbuilder.net/Decks/ViewDeck/771055