My personal favorite deck with my personal favorite mechanic, Extort. The deck is a slow bleeder, with the more time put into the game making it less likely for your opponent to win. Some games will have you win and never declare a single attack. The deck is the epitome of being a parasite, only getting life from the opponent until they have nothing more to take. If your opponent has a slow life gain deck, get comfortable, the game could go on for a while.
The land base is put the way it is thanks to budgetary concerns, but mana fixing isn't the biggest of concerns, surprisingly.
Thrull Parasite is one of the most surprisingly impactful cards. Against Planeswalkers, it's obvious, but a turn 1 Thrull can nearly to completely negate Aether Vial if you're playing against a more competitive deck. It also allows Orzhov Charm to activate its resurrection ability if you're in a position where you don't need or can't use the removal effect if you need an extortion trigger.
Basilica Guards are some of the best defenders. 4 toughness is enough to avoid burn alone, and being 3 mana avoids Fatal Push if you're facing a more competitive opponent. Because of their ability to stick to the board, they tend to be the most reliable extorting creatures with Basilica Screecher.
Crypt Ghast allows for excess mana to flood and every creature you have to trigger its extort ability. When combined with Urborg, Tomb of Yawgmoth, you should win soon.
Debt to the Deathless is the best finisher in the deck, or can be used as a turn to spend a turn's mana to keep yourself in the game for another turn or two. When combined with the aforementioned combo with the ghast, the game is just over unless your opponent has a counter spell ready.
Blue was splashed just for counterspells, originally put in because of a perception of them being overpowered. They were left thanks to their usefulness, with Psychic Strike acting with nice disruption, the mill effect sometimes coming into play more than you'd think, and Punish Ignorance working well to get your opponent closer to 0 life. It's also great to see your opponent's reaction to dying to a counterspell.
Flyers tend to play a nice part in the game, with Duskmantle Seer's ability usually affecting your opponent far more than you, and Deathpact Angel being one of the biggest pains for your opponents with the resurrection ability, and that's assuming they can get rid of a 5/5 with flying. She can win games by herself, either by defending or attacking.
Currently thinking of turning it back to Orzhov and making it modern viable. Hey, if you're going back to something, why not go back to basics?
