I imagine Sulfur elemental is good against mono white humans since the deck is mostly plains and turning off Cavern of souls does not matter a lick to the deck since you are not countering anything.
Also is a really good way to deal with MM, since the tokens will die on creation.
I'm surprised the rabblemasters are good still. I would have thought the deck still wants to hide behind ensnaring bridge and win off a chandra.
Forgive me if you've covered this in another thread, but I'm surprised nobody has mentioned Workshops? Surely if you're optimizing for wins, 4 Mishra's Workshop is going to get you further than 1 Black Lotus in a Jund deck? I think the Jund deck is promising and fun, and I think there are lots of decks you could build without blue power ... but a plain old Workshop deck has a decades-long record of success. Jund and any other deck in this thread just don't have the track record ... and if turns out that decks like Hatebears or GW or Jund are great right now, those are heavily metagame-centric decks that rapidly shift in power level every few months, where some form of Workshop deck has been top tier for literally 20 years.
I'm bad with prices but a quick look on MTGGoldfish suggests you should be able to cover the price of 4 Workshops with just the blue power and a single mox. If instead you sell the blue power and the Lotus, you'll not only end up with a dramatically better deck, but possibly more cash on hand.
If you just want to be able to say you own a Lotus, or you want to sit on it for #mtgfinance, or you just don't enjoy playing Workshops, then forget everything I said ... but I felt like the obvious answer went unstated.
Personally not a huge fan of playing meta decks, and workshops is still too much concentration of wealth for my tastes. Playing something that can win any match, is not specifically blown out by anything, and is something that gains edges from new releases interests me.
Were shops restricted I would pour my attention into some sort of eldrazi prison deck, because I like the idea of intentionally playing something that wants no power and no power lands and does things that are very strange when you consider the format, but shops eats that decks space right now so moon is way more interesting to me.