Here's my optomized build for you.

LAND

1   Strip Mine
2   Wasteland
11  Plains
1   Serra's Sanctom


DRAW ENGINE

4 Land Tax
3 Scroll Rack
2 Zuran Orb

ENCHANTMENTS

1 Moat
1 Story Circle
1 Peace of Mind (Great in response to a Balance/Planar Birth. Better than Ivory Tower)
1 Ivory Mask
3 Aura of Silence

ARTIFACT

1 Black Lotus
1 Mox Peral
1 Lotus Petal
1 Mox Diamond
1 Sol Ring
1 Tormod's Crypt
1 Crucible of Worlds
1 Reito Lantern (1 generic more to use than Soldevi Digger, but you can grab any card in any grave)

INSTANT

1 Enlightened Tutor
4 Argivian Find
4 STP
4 Orim's Chant
3 Abeyance

Sorcery

1 Planar Birth
1 Balance
1 Wrath of God
2 Goden Wish (this deck can actualy cast them early enough to matter)

WIN

2 Sacred Mesa

=========================

SIDEBOARD

1 Coat of Arms (this is here if the match is taking too long. i.e. Still the first match in a round, and you've gone to 5 turn extention.)
1 Moat
1 Wrath of God
2 Defence Grid
1 Tormod's Crypt
1 Story Circle
1 Ivory Mask
1 Conversion
1 Peace of Mind
1 Karmic Justice
1 Crucible of Worlds
1 Cursed Totem
1 Reito Lantern
1 Aura Fracture


It takes forever for someone to kill you/you to kill them, but it's fun if you're not playing against it.
The power can be changed for plains and the moat's can be changed for humility. If you do this you should cut a defence grid in the side for a masticore.
The deck is 62 cards. You could cut the Wish, although I suggest that you try them first.

I've been playing mono black in my local field for a while now, and its pretty solid where the field is random. There are a few changes I would make to your deck depending on which way you wanted to go.

If you insist on playing with the Nether Voids, you should build your deck to use them to their full potential. There are several different builds of void. Just decide which one suits you best and play test untill you're satisfied.

On the other side, I find that first turn Dark Ritual Hyppie, or Dark Ritual Duress Hymn can be devistating to your opponents. The Mind Twist I think is unnessisary. Without the moxen and the lotus to wreck your opponents hand on turn one, its just a 2B hymn (if your lucky).

Withered Wretch is a great addition to the deck, defineatly worth 4 slots in the main. The Necropontence in mono black may as well have been banned when it was resricted. The reason it saw play in mono black way back when was to be able to consistantly drop it turn one, and keep your hand full. Now you can constantly deal with, and present threats. If you choose to run the Wretches there is an extremely efficient draw engine that has great synergy with them. Gravestorm. This may sound ridiculous to you now, but play test it before you judge.

Depending on the ratio of basc to non-basics in your field. Cutting either the Wastes or the Sinkholes may not be a bad idea.

How often do you keg for two or three? Diabolic Edict is a great card in any mono black deck, and if you can resolve one against mono blue... If your looking to kill hordes of weenies Bane of the Living has his own technology for that, or he's a second turn 4/3.

The fetch lands are far supirior to swamp unless you run Cabal Coffers.

One more question for you. What do you find yourself consulting for in most games?

heres my list for comparison.

22 Spells
4 Dark Ritual
4 Duress
4 Hymn
4 Sinkhole
4 Diabolic Edict
1 Vampiric Tutor
1 Demonic Tutor

4 Enchantments
4 Gravestorm

14 Creatures
4 Hyppie
4 Nantuko Shade
4 Withered Wretch
2 Bane of the Living

20 Land
1 Strip mine
2 Cabal Coffers
17 Swamps