Lower power cube.

Archetypes:
UW control
UB ninjas
BR madness
RG domain (so it really isn't quite RG)
GW tokens
WB reanimator
UR artifacts
BG dredge
RW humans
UG lands

Many archetypes can reach into other colours for additional synergies.

Rulings:

1. Dryad of the Ilysian Grove only provides the five normal basic land types. The only way to gain the 'cloud' basic type is by controlling Barry's Land.