Multicolor focused with an as-fan of 10 'mono' color cards, 3 gold cards, 1 artifact, and just under one fixer/land per pack.
The idea of this is that fixing should be rare enough to be high in the pick order.
In general, the more color you pour into a spell, the better that spell should be. (this is still a work in progress as we've shifted focus currently to archetype support)
Expect to be in at least two colors with potentially a splash in a third. I've run decks in this cube that were almost entirely mono color, but with three splashes and decks that were three colors with a splash of a fourth (with sufficient lands).
Archetypes include:
Enchantments Matter
Graveyard Matters
Blink
Sacrifice
+1/1 counters
Go Wide
Spellslinger
Lands Matter
Surveil/Top Deck Matters