Art by Lars Grant-WestYou don't have to act lonely, at Artifacts Mostly dot cube
It's a cube made mostly of colorless cards, with the majority having colored activations / alternate costs / etc to avoid the cube becoming one big colorless blob. Also includes Phyrexian mana and the cycle of 2-hybrid cards. "Artifacts matter" effects are only eligible for this cube if they would still be balanced saying "nonland permanent"
The environment is high in synergy, because colorless inherently raises the viability of goodstuff piles. If playtesting reveals it to be too high synergy, it's easier to add chaff later to compensate.
There isn't a lot of colorless removal, so it's a bit sparse in the cube and may need to have more added, also depending on playtesting.
Power level is medium-high so there are no Signets or Talismans, yes monocolor "Diamond" mana rocks, Myr dorks, and guild Keyrunes.
Draft archetypes
| Colors | Theme | Example card |
|---|---|---|
   | Droid Army (Soldier Tokens) | Platoon Dispenser |
  | Sacrificial Dagger (Equipment) | Transmogrant's Crown |
  | Doom Clock (ProWitherate) | The Scorpion God |
  | Mech Power (Prototypes) | Cradle Clearcutter |
 | Shaping Clay (+1/+1 Counters) | Rishkar, Peema Renegade |
 | Protective Shells (Vehicles) | Peacewalker Colossus |
 | Relic Dig (Unearth) | Scrapwork Mutt |
 | Corrosive Poison (Toxic+Infect) | Triumph of the Hordes |
 | Scrap for Parts (Modular) | Arcbound Ravager |
 | Alienfestation (Eldrazi Emergence) | Eldrazi Skyspawner |
All-color themes include Myr mana, Scarecrows, and payments (more rigid than sunburst/converge because flexible costs inherently encourage 3-4 color decks already)