Description
Before and for a short time after the signing of the Guildpact, the Gruul Clans were a wild and noble guild charged with maintaining the wild places on Ravnica. They were supposed to keep civilization in check. Civilization and the other nine guilds, however, overran every wild place on the plane. This changed the Gruul.
As the wilds were torn down, so too were the Gruul's responsibilities taken from them. The Simic claimed jurisdiction over nature's future. The Selesnya Conclave preached about nature in order to bring it into its conclave. With their responsibilities taken over by others, they were seen as outside of the Guildpact and the Azorius Senate began to write them out of the law. Outside the law, the Boros Legion were not required to protect them and the Orzhov Syndicate were free to enslave them.
The Gruul decentralized, lacking any sort of real leadership. The guild became nothing but a loose affiliation of clans. Exploited and ignored, they started to take any reason to cause chaos, any reason to destroy a symbol of civilization. Most Gruul hold contempt for those outside the Clans, referring to them as "cobble roaches".
It is common for Gruul clans to raid an area, destroy it just like the Cult of Rakdos, and live there until the resources gleaned from the destructive raid are used up. Once that happens, they move on to a new area, leaving smoldering ruins in their wake. They observe few consistent traditions but love to celebrate Rauck-Chauv, an irregular festival characterized by several days of rioting, feasting, looting, and destruction.
Borborygmos is the largest and angriest of many large and angry clan leaders. He isn't the official guildmaster of the Gruul, as there is little official about the guild, but when he gives orders, the Gruul listen. Their home territory and informal guildhall is Skarrg.