A peasant cube built around cross archetype synergies. Most cards try to be good in multiple decks. Additionally every color pair tries to support more than one deck each signaled by the typical signpost uncommons with many being selected to be good in both colors pairs archetypes. There are a few super-synergies across most if not all colors to bring together most archetypes and allow unexpected color pairings and synergies.

Major multi-color synergies

Artifacts:
Artifact synergies can be found across all colors, majorly in Esper colors with some support in red and some cross synergy between the artifacts archetype and green through the Modern Horizons 2 introduced junk archetype.

Graveyard:
Major synergies across multiple archetypes. Many cards across all colors that provide advantage while in the graveyard. Provides a starting point for multiple color pair archetypes.

Tokens/Go Wide:
Many colors and pairs enable or care about developing a wide board in their own unique ways.

Color Pairs

White Blue
I) Fliers - typical Blue-White limited archetype, get on the board with evasive creatures and either outrace your opponent or set them back enough on tempo to finish them.

II) Artifacts - Artifact synergies present across many colors, the blue white version if the deck will tend to go long, taking advantage of value from artifact etb's and expensive bombs with affinity.

White Black
I) Reanimator - altered by the Modern Horizons 2 WB archetype the reanimator deck can go big or small. The deck can reanimate bombs as a combo type deck, or go for value repeatedly recurring smaller creatures for value and grind the opponent out.

II) Artifacts - Another possible artifact deck, this one will play fast taking advantage of the black cards that get buffed by artifact etb's.

White Red
I) Modular - The Red White artifacts deck is another aggressive version, leveraging the modular keyword and equipment

II) Go wide - An aggressive tokens deck, pumps out many bodies then buffs them for alpha strikes, many of the token makers create artifact creatures so they work in both archetypes.

White Green
I) Go wide - Similar to the red white version but a little slower but more resilient.

II) +1/+1 counters - the quintessential GW limited deck, many of the the counters cards are also good for wide boards, some pockets of synergies with counters spread into other colors as well.

Blue Black
I) Artifacts - another artifact deck similar to the blue white deck taking advantage of value generated and going long.

II) Zombies - Many great cards in U/B are zombies and this deck leverages those cards while utilizing many of the tools in blue and black the best.

Blue Red
I) Spellslinger - pretty normal UR archetype, leveraging blue and reds good spells can be fast and really take advantage of tempo

II)Artifacts - A quick artifacts deck that can leverage some powerful synergies to compete late.

Blue Green
I)Junk - The new UG archetype from MH2, provides a nice direction for UG while working with the artifacts theme in the cube.

Black Red
I) Madness - Aggro deck requiring careful deckbuilding balancing discard outlets and card with madness. Some cross seeding with multiple green madness cards and discard outlets.

II) Artifacts - Possibly the fastest artifact deck, lots of cards that get buffed by artifact etb and can get rolling quickly.

Black Green
I) Graveyard decks - Multiple different directions to take the BG deck, all united by tools to fill the graveyard and gain advantage through that.

II) Sacrifice Deck - Leverages good sac outlets in both colors, recursive creatures in black and token generators in green.

Red Green
I) Stompy - just play ahead of the curve creatures and beat down on decks trying to get too cute.