is a multiplayer cube (usually played in two four-player pods) based around three-color archetypes:
Blink + Control
Saboteurs + Your Deck
Stompy
Tokens
Auras
(+1/+1) Counters
Noncreatures
Graveyard
Aristocrats
Flashy Ramp
Goodstuff AND/OR Gates

The draft format is an alteration of the Hypercube model:
4 13-card packs with rarity/type based content:
3 R/4 U/4 C/Non-Gate Land/Gate
There's also a rule to the distribution of draft-matters cards: Cogwork Librarian, Animus of Predation and Agent of Acquisitions are in the first round of packs and there's one Lore Seeker each round.

The Cube also contains cards edited for the sake of its environment, such as tailoring all three of the charm cycles (2C, Shard, Wedge) to fit more in their respective archetypes, making the Willbender effect an instant (morph is an unsupported mechanic) and more!