Rakdos Incarnate (Standard)

This is an aristocrats style deck aimed around sacrificing your own creatures for value.
The main aim is getting out Torgaar, Famine Incarnate for cheap.

The deck includes a 6 mana combo capable of killing your opponent in one turn.
3 creatures on board + Torgaar, Famine Incarnate + (Invigorated Rampage or Lightning Strike) + Fling
It takes a bit to setup but it is something you can always work towards if time permits.

Dire Fleet Hoarder provides a decent body and when killed/sacrificed provides a treasure which can be used with Costly Plunder or to help with the combo.
Dusk Legion Zealot is just a cheap body which replaces itself with card draw.
Kari Zev, Skyship Raider generates a Ragavan token that can be sacrificed for either Costly Plunder or Fling.
Weaponcraft Enthusiast is great value providing 3 bodies for 3 mana.
Pia Nalaar provides 2 bodies and some great utility.
Ravenous Chupacabra is both removal and body that can be sactificed.

Costly Plunder is the card draw engine in this deck, there are plenty of good targets to sacrifice.
Fling is a combo piece but can also be used as removal in a pinch. Works well with Kari Zev's Expertise.
Lightning Strike is a removal spell and also a combo piece.
Invigorated Rampage is part of the combo but can also act as a good finisher in combat if the opponent tries to chump block Torgaar, Famine Incarnate.
Kari Zev's Expertise combos well with all the sac outlets in this deck.
Rite of Belzenlok is an alternate win condition. It creates 4 clerics who can be used to block or to sacrifice and then a demon to finish off your opponent.

Sideboard plan:
Fungal Infection comes in if you are facing a lot of 1 health creatures. Being able to take them out and create a creature yourself is great value.
Gifted Aetherborn replaces Fling and Invigorated Rampage against aggro as it is unlikely there will be enough time to combo off.
Duress comes in against control to try and clear the way for Torgaar, Famine Incarnate.
Additional copies of Kari Zev's Expertise can come in against mid range decks with some high value targets.
Golden Demise is for against go wide decks. It should be fairly easy to get Ascend.