Pretty good set.
Keeping an eye on Courageous Goblin and Cackling Prowler. Unsure of how well they will actually work out.
Martyr's Soul -> Glorifier of Suffering
Zephyr Winder -> River Herald Scout
You Find the Villains' Lair -> Sinister Sabotage
Deprive -> Reasonable Doubt
Undertaker -> Greedy Freebooter
Insolent Neonate -> Tin Street Dodger
Thrill of Possibility -> Demand Answers
Captured Sunlight -> Crowd-Control Warden
Rally the Peasants -> Dog Walker
Papercraft Decoy -> Sanitation Automaton
Evolving Wilds -> Escape Tunnel
I'm still thinking on Dread Return, Drown in Sorrow, and Sulfurous Blast.
Pretty cut and dry this time. The only really weird stuff is Stall for Time and Benalish Sleeper. Treating these as white for the card counts despite the cards being multicolor in identity. I typically want to keep multicolor identity cards in the multicolored section, but I couldn't find cuts that I liked in the multicolored sections.
Removing the snow lands that don't gain life (excluding ones that are forests). The types are largely irrelevant and makes the lands a little bit more enticing.
A few strictly better additions, like Arms of Hadar, Winter Eladrin and Breath Weapon. Other additions just focus the cube a bit more. Notably, we tested adding the Gates to the cube. I initially worried this would make it too tempting to draft three colors, but it seems to be a fairly mundane change, no one ended up drafting three colors, so they should be fine.
Already looking to make the Double Masters changes, and it looks like they will be pretty explosive.
White:
Aven Riftwatcher -> Inspiring Overseer
Stalwart Valkyrie -> Celebrity Fencer
Seeker of the Way -> Raffine's Informant
Faith's Fetters -> Boon of Safety
Blue:
Witching Well -> Make Disappear
Hieroglyphic Illumination -> Rooftop Nuisance
Black:
Morgue Theft -> Join the Maestros
Sinuous Vermin -> Crooked Custodian
Maybe: Fake Your Own Death
Red:
Plundering Barbarian -> Witty Roastmaster
Skophos Reaver -> Wrecking Crew
Green:
Scion Summoner -> Jewel Thief
Titanic Brawl -> Prizefight
Track Down -> Warm Welcome
Hooting Mandrills -> Rhox Pummeler
Maybe: High-Rise Sawjack
Multicolor:
Lava Zombie -> Body Dropper
Colorless:
Vulshok Morningstar -> Chrome Cat
Lands:
Blossoming Sands -> Botanical Plaza
Rugged Highlands -> Racers' Ring
Glacial Floodplain -> Skybridge Towers
Sulfurous Mire -> Tramway Station
Ice Tunnel -> Waterfront District
Mostly replacing snows with the new lands. Three Visits and Nature's Lore are able to fetch non-basics, so I left the snow forests since they're fetchable.