General themes:

WU - Control
UB - Control/Reanimator
BR - Aggro/Sacrifice
RG - Stompy/Fires
GW - Midrange
WB - Aggro/Sacrifice
UR - Spellslinger/Tempo
BG - Graveyard
RW - Aggro
UG - Lands

This cube breaks singleton, playing two copies of each fetch land and two copies of each shock land. Combined with a set of original duals and triomes, mana fixing is quite good.