You know -nothing-, Urza's Saga is one of the should be an auto-include in any deck that runs Mana Crypt no less just for sol ring as you mentioned. Another I just don't personally play a lot so have slept on here. My question for you, what land would you substitute it for? I really don't want to lose any of my other non-basics...Scavenger Grounds would be my top candidate as its only a rare save your ass if someone else is beating us on the graveyard abilities answer, but the few games I have lost recently were because I was unable to deal with opponents graveyards...Will we be just fine mana fixing wise to take out another swamp so we just running two...I could see that and leaving in Urborg, Tomb of Yawgmoth to help us in that aspect. Or just a straight up Tomb out and Urza in...what do you think?

Also, just to clarify, of course we like creatures in general because we can return or reanimate them, but any Non-Lhurgoyfs we include without running Maskwood / Conspiracy / Ashes should be absolute bangers which is why I would steer away from those

Also taking a second look at Uurg, Spawn of Turg now, because it is growing on me that it can also be used to rescue an early Boseiju, Who Endures we had to play as a land when we have Crucible of Worlds or Life from the Loam about.

Hey KongMing I chose not to include any surveil except for the two Manor lands only because I would ask right away, what synergy here would you take away from to add surveil in? We need every ramp, removal and land we have and the 2 surveil each from Pile On and Price of Fame I don't think are worth removing our two global effects Blasphemous Act or Toxic Deluge for. Both Dragon's Rage Channeler and Grim Flayer were in my original version of this deck, believe they are also in precon? So thanks for reminding me about them cause will add into Maybeboard. They had just come out for me a very long time ago. Grim Flayer I do still really like, but I went away from creature abilities you need stipulations to trigger for more sure thing instant, sorceries, or artifacts for our mill effects which are harder to remove and it seems to have paid off for me. Rage's bonus of being a flyer for Disa's combat trigger is nice though. Unshakable Tail I had never seen before, so thanks for that one. As great as the ability is, its on a more easy to remove creature and as great as that clue ability would be in this deck, we don't have many turns we have an extra 2-4 mana to utilize them. Clues are great in an emergency though. Will keep it in mind. Uurg, Spawn of Turg I like as well, the life gain effect is nice touch, but I'd rather again have these effects not come from a creature and I don't feel its worth giving up one of our spells that can throw multiple cards at once into our yard for. The one I really like here that I can see putting in instead of Lumra or another 5-6 drop is Doom Whisperer. The 5 mana cost we reserve for only our best effect creatures and this could easily be justified as one of them. I also like when things are dire, with Disa and this Doom out, you can go for the hail mary and pay 20-30 life and dump a ridiculous amount of Disa Goyf triggers onto the battlefield for the win. Next update I think I will definitely try and slot this in. Thanks!

Survival of the Fittest should definitely be in and now is. I've done a straight substitute for Tortured Existence, but both are so good im going to see what else we could afford to lose in order to keep them both.