I made another version of this that goes a bit lighter on artefacts and hand destruction, as I was finding opponents often had no cards to discard, and a little heavier on sacrifice, along with all the bombs I wanted to put in the previous deck (walkers, Kalatis, Mindwrack Demon, etc).. while still having sufficient hand destruction.

Currently 14-3 and pushing 40

Creatures (18):
3x Carrier Thrall -- (sac target for Altar's Reap or Kalatis, leaves behind another body which is also a mana ramp)
1x Yahenni, Undying Partisan
1x Liliana, Heretical Healer -- (easy to flip her with all the sac options, then she's hand destruction or recursion).
3x Weaponcraft Enthusiast -- (three bodies in one cast, great for sac fodder or flipping Abbey.. and a 3cmc shell for emerging Mindbender)
2x Vengeful Rebel -- (plenty of Revolt triggers. Once his ETB effect is done, he can be used to emerge Mindbender)
2x Thought-Knot Seer -- (hand destruction)
1x Mindwrack Demon -- (synergy with Whispers of Emrakul and the deck in general, as the GY is easily filled with Wilds, Implement and creatures/spells)
1x Kalitas, Traitor of Ghet -- (synergy with Liliana, Carrier Thrall. Survives Yahenni's Expertise)
2x Priest of the Blood Rite -- (plenty of synergy here for sacrificing the Priest or using him to emerge Mindbender)
2x Distended Mindbender -- (hand destruction and ample emerge fodder)

Artefacts (6):
4x Implement of Malice -- (hand destruction. can self-sac to trigger revolt.. puts an Artefact in GY for delirium)
1x Aethersphere Harvester

Instant/Sorcery (11):
3x Fatal Push -- (plenty of revolt triggers)
2x Whispers of Emrakul -- (cheaper than Witness the End or Mire's Malice, random discard instead of their worst card(s), not too uncommon to achieve delirium)
4x Altar's Reap -- (card draw with sac/revolt synergy.. Instant speed lets you sac something being targeted with removal anyway)
2x Yahenni's Expertise -- (sweeper, free cast)

Walkers (2):
1x Liliana, The Last Hope -- (wincon.. synergy with Kalatis and Delirium)
1x Ob Nixilus Reignited -- (card draw / removal / wincon)

Lands (24):
13x Swamp
1x Wastes
1x Geir Reach Sanitarium
2x Westvale Abbey (easy to flip it in this deck)
3x Foundry of the Consuls
4x Evolving Wilds -- (revolt trigger, puts a land in GY towards delirium)

Yahenni is probably on the chopping block. His body is too weak to make use of the Haste, or he gets removed before he pumps up. He's mostly in as an unconditional instant sac outlet. He also doesn't synergise with Kalatis due to the exile effect (apart from the small synergy of being a Vampire for Kalatis to gobble up). He could become a third Vengeful Rebel.. or second Harvester.

I'm thinking I could cut the Wastes for more utility lands that give , since the deck only needs for Thought-Knot Seer and doesn't require Wastes specifically.
Maybe Drownyard Temple, Rogue's Passage (to sneak Mindbender through), or Geir Reach Sanitiarium.

I'm toying with an Implements of Malice/Scrap Trawler/Mechanized Production build which I'm starting to like a lot...let me polish it a bit more and I'll post it, I'm almost there, lol

Ok, polish that implement! ( ° ʖ °)

Haven't lost with the above deck yet

(insert polack gay joke)

oh u

I like the look of your second deck, I think I may take it for a test drive today. A couple of minor thoughts:

1) I would cut all but 1 waste. Having 1 lets you evolve for it and the remaining 2 slots can be used for a land of your choice.

2) Not in love with the singleton harvester. My thought tends to be that if a deck needs it to stay alive then it should run 2, otherwise use that slot for something else.

Edit:

I think I like gifted Aetherborn over Yahanni and the aethersphere harvesters. What about a Grier reach sanitarium and a rogue's passage instead of two of the wastes? If the opponent is at 0 cards in hand, the sanitarium is great because it gives you a filter effect but not them. The passage is likely to only be relevant once in a while, but I can't think of a downside to running it (assuming you leave 1 waste to be grabbed with EW).

Yeah I plan to do -2 Wastes +1 Sanitarium +1 Passage. Or maybe even an extra Swamp just to be damn certain I'm hitting by turn 3-4

I can't remember Gifted Aetherborn, I'll have to open the game and have a look.

Let me know how your testing with it goes.

How's that for prophesising my own downfall.. Just lost a match purely because I didn't hit double black until 20 cards into my deck (what the actual F--K?!?! )

Otherwise I would've (and should've) utterly wrecked this guy's token artefact board with Yahenni's Expertise, which would've taken me to 14-3 and rank 39.

Cutting the Rogue's Passage for a 13th Swamp... If anyone needs me I'll be brooding in the corner.

Anything from the new expansion to feed this archetype?

Miasmic Mummy is your low-cost discard dork/meat shield, with the slight drawback that it hits you, too.

Possibly even Painful Lesson? Make 'em draw if you have another discard effect in hand? Kind of counterintuitive, unless you already have a contingency in hand. Alternately, it can be aimed at yourself to draw into your own deck.

Maybe Scarab Feast to keep pesky discarded cards from coming back into play. (See also: Watchers of the Dead for possibly recursion prevention.)

Unburden, naturally.

Otherwise, Amonkhet seems more interested in self-destruction through cycling/discarding, self-directed -1/-1 counters, leaving exerted creatures tapped for an extra round, and generally doing your opponent's job for her.

New Liliana bringing back Mindbender is dirty.

Mindbender's ability is only activated upon casting, though. Surely, if Lily brings it back directly to the battlefield, that ability would not take effect.

Or do you mean Liliana, the Last Hope?

Dang it! We need to clarify: Old Lily, New Lily, or New New Lily?

New, new Lili. Looking at the cards you're right. But I'm certain that someone did that vs me and the mindbender took a tragic arrogance that I really needed to cast on the next turn. Either duels is doing it wrong or my memory is shockingly bad.

I know that I've made similar mistakes, bringing Oblivion Sower back to the battlefield from the GY and his power hasn't worked. I'm pretty sure it has to be cast.

That's definitely the case, he's saying he's either: (a) remembering it wrong or (b) Duels has a bug.

Both options wouldn't shock me much.

Oblivion Sower is an amazing card.

No

Watchers of the Dead + Oblivion Sower da GOAT combo.

I haven't revisited this deck since the expansion landed, but I think soupcannon named the main ones.

Unburden from a Yahenni's Expertise would be glorious.

We also got a few new sac fodder creatures like Festering Mummy- Not much good for Emerge though.