This deck on the other hand ends up being more focused, more powerful, and more resilient (hopefully) than Xiahou Dun was. Of course, there are nearly 10 years worth of cards printed since Xiahou which makes a huge difference. The main issue I can see is that this may perhaps be too powerful but I am having fun with my playtests online so far.
Here is the list I am currently running:
I tried to lean into Sheoldred's effects as much as possible without going overboard. I didn't want to add much that become actively worse without her on the field. I do have Seizan, Perverter of Truth which probably falls over that line a little, but this does mean that there is no Howling Mine, Font of Mythos, or Temple Bell. Bell is probably mostly fine but it just isn't something I wanted to add.
Of course, there is plenty of chaff, especially for a rough draft. Things like Dark Ritual and Portal to Phyrexia are likely to get cut. Ritual is still here when I was going bigger on ramp and I had Cabal Ritual and Jeweled Lotus in the list but I didn't like how it played. Portal to Phyrexia is just a big drop to do something with all my mana I can hopefully produce but I don't particularly like it in the list.
Endless Atlas is another that might not be needed and I am still debating on Teferi's Puzzle Box. The card fits nearly perfectly but I don't like not being able to set up my hand very well before my turn. That is, if I draw a bunch off of Erebos and then shuffle it away, it drags the game on as I try to figure out what to do with the new hand. Same for everyone else. I still have it because it can legitimately kill people.
Torment of Hailfire may be a notable omission when talking about wanting stuff to use all my mana on, but I really don't like the card. I know this deck can be fast and can be devastating, so perhaps wanting to limit powerful spells is a bit odd but that is the route I am going to take.
Also, I have no way of protecting Sheoldred. No equipment or things like Kaya's Ghostform to help alleviate issues with board wipes or spot removal. This may be a mistake but I am sort of banking on large mana production to just get her back. Maybe not the best solution, but I don't think it is especially game-breaking. Of course, if she is targeted heavily (which she likely will be) and I am finding it difficult to get her back often, I may add in some protection spells (most likely equipment).