We are not, as others believe, the sewer moss that clings to the undercity corridors. We are not the digestive garglings in the sludge of Ravnica's stone lined gut. We are not fungus-draped beetle swarms feeding on heaps of rot. We are far more. We are the Swarm, and we draw power from places that others dare not look.
You have come to us because you seek to understand life and death. In time you will learn why they form a circle, and you will come to weild that knowledge as a weapon without equal. We are the Golgari. We harvest the carcass of our allies and wear them in the defeat of our enemies. We live by the law that what survives will ascend.
Welcome to the Swarm.
--Jarad von Savo, Guildmaster of the Golgari
Each Pre-Release box contains five booster packs for Return to Ravnica and one guild specific pack with the promo card for that guild. The box also contains the exclusive pre-release life counter, a guild sticker, and a letter from the Guild (quoted above).