I started to play magic just when the original Ravnica: City of Guilds was about the be released. In the following year my love for the game grew and with it my love for the guilds and the plane of Ravnica. My goal with this cube was to keep the power level low enough that most of my old favorites remained playable, while still crafting a very dynamic and challenging cube format with high replay value. To achieve this, this cube consist of a core and ten guild modules. For each draft, only five guild modules are used. This way you not only get a shifting format (12 different configurations with each color appearing twice) but it also makes two-colored guild decks with a bunch of cool gold cards possible.
This cube is built from cards set on the plane of Ravnica, all sets were fair game. It is singleton, except for mana fixing (4 Shocks and 4 Bouncelands for each guild). There are some fun build-arounds, including a really, really janky combo win, but mostly I tried my best to really embrace what the guilds are about.
SelesnyaThe Conclave likes to have lots of creatures fighting for its ideals. Token producers help you convoke out big spells and the populate mechanic keeps growing your army.
DimirPeople chatter that there is a House, unknown to the public, but mighty. They say it like's to play a controlling game and mill people out of their minds.
BorosOut of the way, citizen! The Boros legion comes marching your way, with lots of aggressive soldiers and knights that will run you over quickly.
GolgariDeath means nothing to the swarm. It uses the graveyard as a resource, dredges up creatures and scavenges dead bodies.
IzzetWhat do you get when you combine plasmodermic energies and electropopulsion magnetronics? A spell heavy deck that can win in a single explosive turn.
OrzhovThe Syndicate is aware that you have a debt to pay. And it will slowly drain your resources and life points from you to get what they are supposed to get.
GruulGruul angry. Gruul big creatures, burn your face. We eat!
AzoriusThe Senate would like to know whether you have already completed Annex a35 from Form 712 and sent it in on time. Else their fliers and control magic would come for you.
RakdosThe Cult doesn't have to attack you recklessly, kill your innocent creatures and burn you alive in a hellbent manner - but they will enjoy doing it anyway.
SimicYour creatures aren't perfect - but the Combine says, they could be. Just add a wing here, a +1/+1 counter there and you can overwhelm you foes with your wonderful forces.
Despite their differences, many guild work together quite well. I've seen Izzet chronarchs recurring unthinkable Dimir magic and Simic biomancers optimizing Azorius Griffins before. So watch out, you'll never quite know what lurks around the next corner in Ravnica!