Description:
This is really just a mono-black control / good-stuff deck.  There is a slight emphasis on milling with cards like keening stone and sword of body and mind.  This is to make the most of geth's ability.  The spot removal is also meant to do double duty, turning their threats into your threats via geth.  Aside from that, this deck tries to generate lots of mana with artifacts and lands like cabal coffers, then use card draw engines like necropotence, dark confidant, etc., to allow the controller to both play powerful threats AND use geth's ability as often as possible.  There are also sac outlets so that you can pitch stolen creatures and just steal them again once they are back in opponent's graveyards. the tutors should grab sol ring early, bloodchief ascension if you have a mill engine up, necro or cabal coffers (depending on if you need mana or cards) mid or late, or a board wipe if necessary.

As per all my decks, combos pieces are left out, like mindcrank (which would combo with bloodchief ascension).

Changelog:

10/16/13
- everflowing chalice + jet medallion
- korlash, heir to bladeblade + helm of possession
- mortivore + ascendant evincar
- ob nixilis, the fallen + visara the dreadful
- ratchet bomb + oversold cemetery
- scorched ruins + volrath's stronghold
- haunted fengraf + dust bowl
- bonehoard + yawgmoth's bargain

10/20/13
- liliana of the veil + thran dynamo
- swamp + scorched ruins

3/8/14
- oversold cemetery + erebos, god of the dead
- swamp + leechridden swamp

11/21/14
- nykthos, shrine to nyx + swamp
- scorched ruins + swamp

12/13/14
- 1 Ascendant Evincar + 1 Urborg, Tomb of Yawgmoth
- 1 Ashling, the Extinguisher + 1 Armillary Sphere
- 1 Attrition + 1 Bloodgift Demon
- 1 Bloodline Keeper + 1 Drana, Kalastria Bloodchief
- 1 Cairn Wanderer + 1 Greed
- 1 Go for the Throat + 1 Hero's Downfall
- 1 Lashwrithe + 1 Ob Nixilis, Unshackled
- 1 Nantuko Shade + 1 Pestilence Demon
- 1 Ob Nixilis, the Fallen + 1 Profane Command
- 1 Sudden Spoiling + 1 Ratchet Bomb
- 1 Swamp + 1 Soul of Innistrad
- 1 trading post + 1 beseech the queen
- 1 swamp + 1 blasted landscape

8/2/15
- black sun's zenith + pox
- leechridden swamp + alhammarret's archive
- pestilence demon + mikaeus, the unhallowed
- yawgmoth's bargain + damnable pact

4/4/16
- profane command + behold the beyond
- sand's of delirium + whip of erebos
- liliana vess + graveborn muse

5/1/16
- soul of innistrad + grey merchant of asphodel

5/10/16
- damnable pact  + exquisite blood
- life's finale + decree of pain

at some point
- greed + chainer, dementia master

10/17/16
- mikaeus the unhallowed + gonti, lord of luxury

5/2/17
- pox + planar bridge
- alhammarret + profane command
- underworld connection + s of f and i
- keening stone + argentum armor

1/7/18
- nev's disk + mirage mirror
- profane command + torment of hailfire

5/30/18
- avatar of woe + grave titan
- magus of the coffers + The Immortal Sun
- gonti, lord of luxury + Vona's Hunger
- deathcloud + animate dead

6/17/18
- tectonic edge + cabal stronghold
- behold the beyond + rune-scarred demon
- worn powerstone + sol ring
- visara the dreadful + yawgmoth's vile offering

5/15/19
- planar bridge + doom whisperer
- vona's hunger + ritual of soot
- swamp + Forge of Heroes
- yawgmoth's vile offering + bolas's citadel
- ratchet bomb + endless atlas

10/16/19
- lake of the dead + cryptic caves

3/6/20
- forge of heroes + rogue's passage

()
- massacre wurm + Vilis, Broker of Blood
- murder + eat to extinction
- argentum armor + nyx lotus