Archetypes:
U/B - Rogues-Ninjas-Unblockable/Reanimator
U/R - Izzet Blitz/Zada Combo
U/W - Flicker/Control Flyers
U/G - Tokens Matter/Proliferate
G/R - Modified/Curve Out Aggro (You can Zada here too)
G/B - Graveyard Value - Self mill
G/W - Heroic/Enchantress
W/R - Equipment + Auras/Go wide tokens
W/B - Lifegain / Reanimator
R/B - Aristocrats / Aristocrats again, but this time with Artifacts