Here's some cards I've seen and thought were worth considering.

Tectonic Reformation- extra self discard effect, filters lands, fills the graveyard and pairs nicely with Crucible of Worlds

Pestilence- reusable board control and lowers opponents life totals. A little colour intensive though. I'd add a Urborg, Tomb of Yawgmoth if I decided to play this. Works particularly well if Kroxa is on the board.

BubbRubb4Real: We don't really need Torment, because 1) the triggers from Kroxa's ETB already drain people pretty well, and 2) we can just lead into Worldgorger combo from the Breach path.

mccabej140: I'll think on Tectonic Reformation! But honestly, the problem here is frequently too FEW lands, not too many... Pestilence is pretty awesome, but depends on meta. I can't run Urborg in this list, though, since there's a few decks in my meta that abuse it far better than I can.

Daedalus19876 That makes sense. After some play testing with it I found that the damage is off the charts if we have Syr Conrad on the field as we’re generating a ton of treasures.

So in my latest play session with my play group this deck got destroyed by both Ground Seal and Leyline of the Void which is bound to happen. But I was thinking of adding in Mire in Misery . It seems like we have enough board wipes and pin point removal in order to get us to a board state where playing Mire in Misery would force players to have to sac an enchantment. Plus if we were in dire need of it it seems like it would be easily recur-able with Underworld Breach.

BubbRubb4Real: Ground Seal shouldn’t be a huge problem for this deck, since both Kroxa and Underworld Breach still function with it out. Leyline of the Void is trickier, though, and Rest in Peace is even worse. The issue I've had with Mire in Misery is that it requires them to only control one enchantment, it's pretty useless with two enchantments out. Another potential option is Pharika's Libation. But Chaos Warp is my current go-to spot removal for enchantments, and I'd almost rather run another tutor for it instead.

Great deck. Sorry if I don't have any suggestions. World gorger dragon is really like 10 bucks? I remember when it was fifteen cents and everyone thought it was terrible. Gosh!

vasarto77: Well, I mean, Worldgorger Dragon IS terrible... outside of the specific case that 1) no opponent has removal, and 2) it's reanimated by Animate Dead or a similar card, haha.

Thank you for the compliments on my list! It's a lot of fun to play :)

I absolutely love this deck. I've been wrestling with what to turn the Rakdos precon into (was going to go voltron with Greven), but now I think I have found a MUCH better idea in this! Though, I'll go without the infinite combos, personal choice.

Might I suggest Library of Leng? It still lets you trigger discard effects, and it protects your combo pieces from random discard effects.

Speaking of self-discard, how about Lion's Eye Diamond? Can ramp you, goes well with breach. Self-discard works with Bone Miser. Can help you fuel Kroxa escape cost.

I think I have said this before but I always don’t know what to say when posting on your decks, because I feel like you cover everything in them.

I’d also like to add that your deck descriptions are top notch, when I first joined this site, I never really knew what to put in a description until I came across one of your decks and realised just how useful a good description is.

What do you think about cards like Liliana's Caress and that type of effect? They may be useful to you?

Podma101: This deck is pretty great to play, I'd highly recommend it! Library of Leng would definitely be interesting to test, but it's always hard finding space...

Profet93: Can't afford it and can't abuse it sufficiently. I'll pass on this one.

Poly_raptor: Hey, thanks for the upvote anyway! XD and I appreciate your thoughts on the descriptions, I'm still expanding this one... Regarding cards like Liliana's Caress, I avoided those here because 1) they're kind of overplayed, and 2) if I don't draw them early, they're rather dead cards (since I have no interest in refilling opponents' hands). This is a deck that thrives on my opponents never getting cards back in hand if I can avoid it.

Potential additions from Ikoria: Surly Badgersaur, Deadly Rollick, Brallin, Skyshark Rider  ^Flip, and Call of the Death-Dweller.

full art kroxa hides his cute little feat, original Kroxa, Titan of Death's Hunger is the way to go.

casual_competitive: But the kerning and foiling technique are MUCH better on the full-art, and the full-arts curl much less -- even though I basically live in a swamp :P

do you not want to be stepped on by kroxa?

casual_competitive: I only wish to have Kroxa step on my opponents.

Any reason in particular that you chose not to include Syphon Mind?

mccabej140: Too much mana, too small of an effect. Also, scales badly in smaller playgroups. Finally, too much competition for slots!

I'm seriously considering dropping Dockside. Not because of its price but because my playgroup doesn't really play artifacts and enchantments to take advantage of it. I also had to take out Blood Moon cause we have a rule about screwing with people's mana bases too much. I put in Grave Pact instead to take advantage of the sac triggers from Kroxa. Idk if that's the right move in hoping to try it out soon.

Ipackgolddots: Hm. I mean, if your playgroup is playing NO artifacts/enchantments, then I can see your logic. But I think you're in a VERY unusual circumstance -- what DOES your local playgroup play?

This deck (as I built it, at least) is decently high-power, and if your playgroup plays no artifacts/enchantments (and doesn't like any form of land hate) you might be pubstomping playing it.

I was thinking Tergrid would be good in this deck, so I will probably try it out