4 Person Commander Cube:

Either drafted in 6x16 packs or 3x32(sad max cards per pack is 20 on tapped out).

60 card deck(25 lands, 35 non-lands suggested).

You must have 2 backgrounds and 1 legend, or 2 legends and 1 background(no using the non-background legends as commanders).

The cards in the deck must be in the color identity of the 3 cards drafted.

8 Person Cube:

Drafted in 3x16 packs.

40 card deck(17 lands, 23 non-lands suggested).

Arcane Signet and Command Tower produce mana of any color.

The backgrounds are treated as auras that enchant a single creature.