Guildhall

The guildhalls     (or guildhomes ) are a 10-card mega cycle of utility lands from Ravnica block. As the name suggests, they represent the headquarter of each Ravnican guild; however, guildhalls are non-legendary.

Each land taps for and has an activated ability that's thematically related to their guild, with an activation cost that requires the two colored mana of that guild as well as a varying amount of generic mana.

History
The first four guildhomes (from Boros, Dimir, Golgari, and Selesnya) were introduced in September 2005 with Ravnica: City of Guilds. Orzhov, Izzet, and Gruul followed in February 2006 with Guildpact. The cycle was completed in May 2006 with Dissension's inclusion of guildhalls from Azorius, Simic and Rakdos.

Ravnica: City of Guilds

 * Boros : Sunhome, Fortress of the Legion
 * Dimir : Duskmantle, House of Shadow
 * Golgari : Svogthos, the Restless Tomb
 * Selesnya : Vitu-Ghazi, the City-Tree

Guildpact

 * Orzhov : Orzhova, the Church of Deals
 * Izzet : Nivix, Aerie of the Firemind
 * Gruul : Skarrg, the Rage Pits

Dissension

 * Azorius : Prahv, Spires of Order
 * Simic : Novijen, Heart of Progress</c>
 * Rakdos : Rix Maadi, Dungeon Palace</c>

Trivia

 * All guildhomes have been drawn by Martina Pilcerova.
 * Some guildhomes have been reprinted in supplemental sets. Vitu-Ghazi has been the most reprinted so far with five reprints. Skarrg has had four reprints, Svogthos has seen three reprints, Sunhome has had two reprints, and Nivix, Novijen, and Rix Maadi have one reprint each.