Black Devotion

Sideboard

Sideboard in Erebos for Desecration Demon if your opponent is playing some life gain.
Sideboard in Nightviel Specter for Mogis's Marauder if your opponent is playing Black.
Sideboard in Dark Betrayal for Doom bladeif your opponent is playing Black.
Sideboard in Undercity Plague for Corrupt if you alredy sideboarded in Nightviel Specter or if your opponent is playing a large creature deck.

How to Play

Play Thoughtsieze into Pack Rat into Mogis's Maruder into Liliana or Desecration Demon into Gray Merchant into Corrupt into Desecration Demon. Doom Blade anything you don't like.

See comments on cards for more in-depth talk on the cards.

Revisions

1 Thought of some good card ideas.

2 Brought it down to a reasonable amount of cards.

3 Added land.

4 Started a sideboard.

5 Finished the sideboard.

6 Nothing.

7 Final version of cards.

8 Added Description.

9 Revised Description.

10 Nothing.

11 Nothing.

12 Nothing.

13 Nothing.

14 Nothing.

15 Nothing.

16 Started comments on cards.

17 Finished comments on cards.

18 Revised description.

19 Fixed error on one of the card descriptions.

20 Added Erebos's Emissary and adjusted my deck to allow it. (Thanks Sklorno)

21 Nothing.

22 Fixed error where I had 58 cards.

23 Nothing.