Ravnica: City of Guilds
Ravnica: City of Guilds is the thirty-seventh Magic expansion and was released in October 2005 as the first set in the Ravnica Block. More information can be found on Wizards' site, located [1]
Mechanics and Themes
Ravnica: City of Guilds introduced four of the ten Ravnica Block two-color Guilds, each with its own Keyword (or Ability Word). The introduced guilds are as follows:
Boros Legion
(red-white) - Incidently, the Boros Legion is the one guild that did not recieve a "proper" keyword, but instead an ability word known as Radiance.
Selesnya Conclave
(green-white) - Was given the keyword Convoke
House Dimir
(blue-black) - Received the keyword Transmute
The Golgari
(green-black) - Was given the keyword Dredge
Following in the tradition of recent Magic blocks, Ravnica takes place in a plane of the Dominaria multiverse that was previously unexplored in the game's backstory. The world of Ravnica is an ecumenopolis, a vast city that covers the entire surface of its planet, and is home to a diverse assortment of sentient races. For ten thousand years, there has been a power struggle between the ten guilds, political factions that each represent a combination of two of Magic's five colors. Ten millennia ago, the Guildpact was signed by the paruns, ending active warfare between them and ushering in an era of peace. But now, on the eve of the celebrations of the accord's ten thousandth anniversary, a sinister force threatens the survival of that peace.