Just some EDH Cube goodness with a heavy focus on multicolour stuff.
Here's some additional rules:
-You have to choose (at least) one Legendary Creature as your Commander and the generel rules of EDH apply (colour identity, commander damage etc.).
-Each player will draft 4 15-card-packs and the decks will be a minimum of 60 cards in total (including the Commander(s)).
-Some cards have erratas to be legal partners, making them legendary if they are not already (search with tag:Partner).
-Mana rocks and lands have no colour identity and can go in every deck.
-Hybrid mana symbols count only as either colour towards colour identity restrictions.
-There is one of each basic lands in the cube. Drafting one allows you to add the corresponding colour identity to your deck.

It is highly encouraged to draft at least three colours.
The archetypes reach into multiple colours and are as follows: Artifacts, Dragons, Spellslinger, Sacrifice/Reanimator/Graveyard, Flicker/Blink, (Equipment) Voltron, Counters. Just general Ramp, Goodstuff or Control work fine, too.
There‘s also some Combo stuff sprinkled on top and some Cascade deliciousness added for good measure.