Unfinished Scream

No, this is not a WIP. It is a deck that utilizes the timing synergy between Unfinished Business and Recurring Nightmare. It's also a scream deck. Therefore, I present:

Unfinished Scream

The combo is putting putting Unfinished Business on Nightmare (Torch is not a card, btw.) When the Nightmare hits face, the inflitrate triggers BEFORE the "sacrifice when ~ deals damage" clause. So you get the unit back! Talk about a Wombo Combo! Then punch face. And if the opponent dares to block the Nightmare, just cream it back. And, again, it will return to hand before getting sacrificed (the opponent will be too terrified to block). Now if you happen to be so unfortunate as to NOT draw Unfinished Business, then just attack with the other high-value units. Or if you don't draw a Nightmare, scream a unit and put Unfinished Business on THAT. It was going to die anyway. Now you have a HUGE Scream/Dark Return target.

It might be better to play a shadow market. I have not done any testing with that (yet), so I cannot say definitively. Feel free to leave any feedback on that (or anything else)!

Update #1: I tried out the shadow market, and I really liked it! Also, cut the number of Devours, as it just didn't feel super useful, and added Memory Dredger. Dredger is somewhat of an odd inclusion, but it can get back Kothon and Dusk Raider, as well as stolen enemy units. Especially nice with a +5/+5 from Unfinished Business.