Jund: Lands
BG - Reanimate Lands
BR - Sacrifice Lands
RG - Land Ramp/Big Creatures

Jeskai - Spells
WR: Artifacts Matter
WU: Midrange Control
UR: Spellslinger

Mardu: Sacrifice
WB: Stax?
RB: Aristocrats
WR: Artifact sac. payoffs?

Sultai: Graveyard
GB: Reanimate
UB: Mill
UG: ?

Bant: ETB
UW: Blink
UG: Ramp ETB
WG: Token Support/ETB