Rix Maadi, the Dungeon Palace, is the guildhall for the Cult of Rakdos. It is a grotesque palace buried in lava-scoured areas of Ravnica’s dank undercity. Many who manage to emerge are too incoherent to describe it. If Prahv is the coldest place on Ravnica, Rix Maadi is the hottest.

Rakdos dwells inside Rix Maadi, a guildhall built around a lava pit in the undercity. The most direct route to Rix Maadi is down an immense stone staircase that leads down an ancient tunnel carved deep into the earth by a wurm and enforced with thick stone pillars. Rakdos members call this subterranean passage the Demon's Vestibule. The crumbling walls of the tunnel are covered in colorful banners and old bloodstains. These faded and ripped banners depict all manner of grotesque acts as well as promote diversion clubs and "festivals." This creates a dark carnival tone even before you reach Rix Maadi. As you descend into the undercity, the temperature rises. Everything is cast in a red glow from the veins of molten rock that branch across the walls and ground. Before Ravnica became covered in city, this section was a volcano. The top of the volcano was long ago stripped away and replaced by buildings, but the molten core and lava pits are still intact.

Rix Maadi stands at the far end of a courtyard, its ornate stone edifice flanked by jagged basalt pillars flowing with lava streams. Tattered cloth banners hang limply from metal spikes and ominous red light pours out through the giant doorway. The façade of Rix Maadi is the only part of the guildhall that resembles an actual building. Inside, Rix Maadi is a large natural cavern with a high ceiling where "chimneys" ventilate the immense underground chamber.

The Festival Grounds lie In front of Rix Maadi. It is a vast, derelict courtyard with a large, defaced fountain at its heart. In the center of the fountain, a once-beautiful statue of a rearing centaur is partially smashed and smeared with various substances. The courtyard looks like an acrobat troupe fled without bothering to pack up their equipment. A rickety tightrope is strung across the courtyard. Several trapezes dangle from rusty hooks. Human-size wooden cages lay tipped on their sides and discarded spiky tools with dubious functional use are scattered haphazardly. On closer inspection, everything is blood-splattered. This courtyard is the site of the most notorious—and fatal—Rakdos festivals.

Rix Maadi, Dungeon Palace