Archetypes in cube:

Control / Flicker

Control

Aggro / Aristocrats

Aggro / Ramp

Enchantments / +1/+1 counters

Midrange / Aristocrats / Reanimator

Counter-Burn / Spell Matters

Recursive Midrange

Go Wide Aggro

Tempo / Ramp

Colour specifics:

Elves
High Tide
Ritual Storm
Creature Storm

Coming with MH3:

Artifacts
Eldrazi

Maybe later:

Madness
Tap creature engine
Lifegain matters
Goblins!

Cardpools:
Pauper | Commanders | Peasant | Token

TODO:
Basic lands cardpool