This cube contains only cards with a mana value of 1. No X spells, no 0 mana value, and no cards with no mana value. Additional costs in the text box of the card(i.e. - Kicker) are fair game.

The cube was designed with wedge color combinations in mind.
WUR - Artifacts/Equipment Matters
UBG - Graveyard/Sacrifice Matters
BRW - Aggro
RGU - Mana & Growth
WGB - Enchantments/Auras Matters

Also look for some tribal strategies. Humans, Zombies, Vampires, and Elves have some tribal support.