Uncommons only Cube of some of my favorite limited cards of all time.
Archetypes:
Blink
Aristocrats
Equipment
Go Wide Midrange
Control
Spellslinger
Ramp
Sacrifice
Reanimator/Graveyard
Pump/Big Creatures Midrange
Tokens
Control
Graveyard
Aggro/Burn
Ramp
Artifacts

Playable with 6 or 8 drafters, there should be enough flexibility in the archetypes and mana bases to easily play three colors.

Cards must have been printed as an uncommon in paper to be eligible.