Not really looking for that much feedback. People I have been playing with have asked for a decklist, so here it is.
It's a fun little deck, and with a surprising amount of play to it, with the most key element being Waste Not. It CAN still win games without waste not hitting the battlefield, mind you, but it makes it so much easier.
For mulligans, you typically want to aggressively want to mulligan for Waste Not unless your hand otherwise has a lot of play to it, like removal and plentiful of disruption.
Worst matchups have so far been highly aggressive decks, hence the 3 Languish
Sideboarding:Against aggressive creature matchups you want to sideboard out the 4 Duress for the 4 Harsh Scrutiny, 4 Dark Deals, adding in the 2 ultimate price and 2 ruinous path.
Getting a 1 mana creature-discard on turn 1 to potentially disrupt their curve or take away their most powerful drop can usually be the difference making it to the later turns where you will dominate and dying before you get a chance to breathe. The most important cards are spot removal, Languish, 1-mana disruption and Waste Not and you should generally mulligan for those in this matchup.
Against midrange matchups you tend to want to take out the Languish for Ruinous Path, as it is very often less about flooding the board and more about individual haymaker creatures/planeswalkers, making Languish much less effective.
Against control you will want to remove 3 of the
Despise
for the 3 Ruinous Path, and the 2 Ultimate Price for the 2
Whispers of Emrakul
I tend to also sideboard out the 4 Dark Deals for the 2 Liliana Vess and 2 more
Empty the Pits
as a resolved Liliana Vess can be extremely problematic for them to beat with its constant hand disruption and vampiric tutor to find waste not/collective brutality/duress/collective defiance in the right spots, and empty the pits is typically the finisher in that matchup.
For anyone that questions my sanity on the fact that I am running 4 Urborg, Tomb of Yawgmoth and 3 Geier Reach Sanitarium despite them being legendary lands: they are by far the most important lands in the deck, fixing the mana and giving us a lategame way to constantly force the opponent to draw and discard. Further than that, the excess legendary lands can simply serve as discard fodder for either the sanitarium activation, or for Collective Brutality.That's all there is for now
