Hey, cool deck. +1 from me. I'd just mostly suggest adding more sacrifice outlets. Pitiless Pontiff and Qarsi Sadist are pretty good. Qarsi Sadist also has an enter the battlefield trigger if that helps. Final Payment is also really great removal for this deck.

Thanks for the feedback Swilliam. I didn't know about Pitiless Pontiff or Qarsi Sadist, good suggestions. I agree about needing another sac outlet. I was considering Priest of Forgotten Gods but I think she might be too fragile to be useful in Pioneer. Should I swap out Corpse Knight for one of them?

I was also looking at Final Payment as removal, but I thought Fatal Push would be OK assuming that this deck would amp it up a lot of the time.

I think the 1 drops might need to be looked at as well, Serrated Scorpion might be a better fit here than Bloodsoaked Champion with it's ETB.

Immortal Servitude has a CMC = 3, so won't work in the Lurrus of the Dream-Den deck, unfortunately.

BioProfDude: Lurrus acctually only cares about permanents, so servitutude is fine.

@BioProfDude - Lurrus only affects permanents, but it is easy to be mistaken!

Hi BioProfDude, CMC restriction is only for permanents so Immortal Servitude is safe (thankfully).

Yep, I realized that and went to delete it just a moment ago and you both beat me to it. My bad!

I like the Priest of Forgotten Gods. It seems good for card advantage and draining, which is what I was trying to get at recommending Qarsi Sadist. That might just be better though. Do not cut Corpse Knight because it seems important to your strategy at the moment. I still like Bloodsoaked Champion because you never run out of things to recur. However, you can always have a couple of Hunted Witness or Garrison Cat which replace themselves for more targets.

Also Tithe Taker might be good in the mainboard or sideboard as a utility card that is annoying for your opponents to play against