Patch notes summary:

• Creature overall creature density across the cube increased. 43% “true” creatures 45% dedicated token makers (ex: Raise the Alarm) to 44% “true” creatures, to 48%~49% depending on if you count cards like Timely Reinforcements that can make tokens, but need setup.
• More Enchantment removal in White, and Green. Black has an option, Extract the Truth, but the total option space is thin.
• Proactive Blue strategies buffed. Draw 2, Curiosity on-hit, Draw 2, and “Spells in Graveyards” added as themes.
• Black refocused on Graveyard & Reanimation. Aristocrats dropped as a major theme to subtheme, only surviving monocolor “Blood Artist” is Morbid Opportunist.
• Green beef reallocated. +1/+1 counters slightly de-emphasized, ramp slightly emphasized.
• Blue-White is not no longer explicitly “Flying”
• Blue-Green is about pulling stuff out of the graveyard. Also Neoform is here. You figure that one out.
• Black-White is about Lifegain. Reanimation subtheme slightly bolstered.
• Rat tokens buffed; Unbanned from blocking.

Notable single-card changes:

• Land cycles adjusted. Removed: Pain Lands (Shivan Reef), Bounce lands (Izzet Boilerworks), 5x Evolving Wilds. Added: Check Lands (Sulfur Falls), MH3 Landscapes (Perilous Landscape)
• Removed all off-color flashback/kicker/adventure cards. All cards are true monocolored or gold.
• Removed all preexisting “whenever cards leave your graveyard” triggers (Tormod, the Desecrator, Thran Vigil, and Chalk Outline). Added Kisla Skimmer.
• Removed all Evoke cards (Mulldrifter, Shriekmaw, and Wavesifter), and Portal of Sanctuary
• Removed (as implied by “no off-color flashback) Spider Spawning. Added: Revenge of the Rats.
• Added Perforating Artist and Garna, Bloodfist of Keld, as an attempt to push Rakdos towards “Aggro with minor Aristocrats subtheme” instead of “Aristocrats with minor Aggro subtheme”
• Added Cleansing Wildfire; Minor slap on the wrist to greedy mana bases. Would add Price of Progress but it’s not very bulk and Anathemancer just isn’t the same.
• Added Neoform. No thought went into it. It might be bad. Good luck figuring that one out!
• Added Angelic Accord.
• Added Crow Storm.
• Added Hidetsugu's Second Rite. Debated Triskaidekaphobia, but I’m more happy with Red than Black. That may come in once I get Black in a spot I’m happy with.
• Added Quirion Dryad, Werebear, and Grizzly Fate. Removed Wild Mongrel (sorry Alice! I just wanna try those other two for a bit!)
• Added Skirmish Rhino and Riverwheel Sweep. These are the only 3c cards in the list.

Note at the end about iconic cuts at the end.

Update Philosophy:
I was largely very happy with the previous version of the Cube. Dramatically increasing the fixing land density felt much better, if slightly overtuned for Sealed. Green had a cohesive identity and performed well. White and Red were already in a spot I liked. However, I felt Blue decks lacked a meaningful proactive gameplan outside of happening into Sphinx’s Tutelage, and Black felt like it only succeeded when paired with Green. And was slightly too consistently paired with Green, as Golgari felt like it was slightly overpreforming. Ultimately these observations inclined me to think the following:

• Blue needed a proactive gameplan
• Black needed work on its identity
• Green needed slightly less focus

These conclusions coincided with seeing Mark Rosewater’s updated set skeleton, and seeing his significant increase reminded me of how regularly I’d feel a squeeze on creatures and a glut on spells. As such, the following major changes were made to directly address these points:

• Significantly increase Blue’s access to quality creatures that can, potentially, close out a game.

While I was mainly looking to give good creatures to proactive decks, I thought slower decks also should have good options to close out games. However, proactive decks generally want good threats in the opening hand, whereas a slower and more controlling deck can wait a while. I did mostly try to include cards that fit well into both spells-y and controlling decks—namely keeping Eddymurk Crab and adding Rise from the Tides and Tolarian Terror—but I could see including a larger creature with Flash or Ward to give blue control decks easier access to a finisher.

• Refocus Black away from Aristocrats, and towards Reanimator.

Why cut Aristocrats? Largely two reasons. Firstly, Aristocrats tends to be at its best as a very high game-objects and game-actions playstyle. This is at odds with “manageable levels of [...] board state complexity levels for a wide range of skill levels” and while any individual Blood Artist isn’t that hard to understand, collectively Marionette Apprentice, Morbid Opportunist, Yahenni, Undying Partisan, Cruel Celebrant, and Judith, the Scourge Diva all function just differently enough that you can’t just batch them together..
Secondly, reanimator in 1v1 Magic and Commander just play out differently. Zombify targeting Pelakka Wurm is a real and dangerous threat that could lose you the game almost on the spot here, whereas in Commander it’s… quaint. I also generally have a guiding light to try to do the thing that’s less “Commander-y” because that means that generally has a home if you’re willing to make one.
Ultimately the complexity issues and more bespoke-to-cube vibes lead me to lean towards downgrading Aristocrats as a major theme. A few elements have been retained, Act of Treason then feeding the creature to Dockside Chef is on the menu, but it’s not going to be a primary gameplan.

• Green had some raw beef exchanged for value engines

Cards like Quirion Dryad and Werebear are very strong… if you get them online, but start the game fairly frail. Sixth Sense, Stocking the Pantry, and Hunter's Talent need you to be forwarding your gameplan to pay you off. There’s also a slight decrease in ramp, especially taking out the pseudo-dorks in 1-mana land enchantments, meaning that Green will likely have less frequent explosive curve-outs. It’s possible that this has not been a meaningful slap on the wrist for Green, as a lot of its best cards remain, but the average base stat line and general increase in creatures in the cube should hopefully keep it more in parity.

Some of you may notice that Day of Judgment, Dig Through Time, Persist, Anger of the Gods, and Collected Company are cards that… have not been printed at Uncommon before. The justification is that I want to experiment with adding an actual rare slot to bring this cube even more in line with retail limited. This also enables me to experiment with a few effects that would otherwise not be available at Peasant, mainly true sweepers. I have some debate on including Mastermind's Acquisition, Wish, or Chord of Calling, but will wait to see if a light sprinkling of rares even feels appropriate before experimenting further. Also the honest answer is I like Dig Through Time and wanna cast it again.

Finally, I’m contemplating supporting combo outright. I’m not sure if I will like how a true A+B combo will play out, but introducing combo is on my radar. The following considerations are not live in the cube, but something like Thopter Foundry+Sword of the Meek and/or Oketra's Monument+Whitemane Lion/Kor Skyfisher. Essentially mana-gated combos that would be infinite if you had infinite mana, though there should be no way to generate an arbitrary amount of mana in the list. Funnily enough this wou