First off, this is a shout out to Kevin at Roguedeckbuilder.com, and Gathering Magic, for giving me the Basis of this deck back in December. Yarrrr!
This deck, at it's core, is a Black Devotion deck, looking to control your opponents hand and gain some advantage off of Waste Not, while throwing down aggressive creatures and chaining Grey Merchants into a winning position.
Hand Control
Waste Not is an awesome card that when presented with the right opportunity, provides insane card advantage. If you can get it down on turn 2, you can get great advantage off of Dark Deal and Mind Rot. Even the
Black Cat
, arguably the weakest creature in the deck, makes people hesitate into attacking while Waste Not is up and running.
However, that's not all. Eventually, your opponent is going to get the idea that they don't want a hand, and who would blame them. That's when you stick it to them. You give them cards to you can force them to discard them again. Master of the Feast gives them more cards, along with Sign in Blood to continue letting you have happy discarding at your leisure. With Liliana Vess in play, you even get to force them to get rid of cards, working towards her Ultimate. Not that they'll have the time to use it mind, you.
Midrange Devotion Plan
However, just forcing your opponent to discard cards does not win you games! You need to have a solid aggressive plan, and this deck provides. With the occasional Zombie from Waste not, and the Air Power of the Master of the Feast, you also have some additional tools. Gray Merchant of Asphodel makes a comeback tour as the coup de grace in the deck. With double costs in Master, Liliana, and Whip of Erebos, you can get your devotion count up quite high.
Twinflame provides a surprise finisher, allowing you to get another trigger of the Merchant or an additional swing of the Master in quick order.
If all else fails, and your opponent is depending on Sorcery Speed Removal, there is also Kologhan, the Storm's Fury as a final means of getting damage through to your opponent. With it's Dash Ability, you can treat it as a Fire Axe, or you can have it be the leader of your zombie horde!
Sideboard
While I am not providing a sideboard, because I've not settled on one, I feel these cards are important to consider. I typically remove Black Cat to make room for these cards.
Drown in Sorrow/Bile Blight/Crux of Fate Against Aggro and Midrange, you'll want something that clears boards. This will do it.
Agent of Erebos With all the Delve decks running around, it's important to clear the graveyard. This provides that function.
Erebos, God of the Dead provides a way to handle decks with excessive life gain, and to draw cards in the Discard Mirror Match.
Thoughtseize I typically find I don't need the Seize, but if you find yourself against control, it should grab the counterspell that your more expensive discard cards would have been hit by.
