A perpetual haze of dreary rain hangs over the spires of Ravnica Bundled against the weather the cosmopolitan citizens in all their fantastic diversity go about their daily business in bustling markets & shadowy back alleys Through it all ten guilds—crime syndicates scientific institutions church hierarchies military forces judicial courts buzzing swarms & rampaging gangs—vie for power wealth & influence These guilds are the foundation of power on Ravnica They have existed for millennia & each one has its own identity & civic function its own diverse collection of races & creatures & its own distinct subculture Their history is a web of wars intrigue & political machinations as they have vied for control of the plane