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Ghaunadaur (pronounced: /ˈgoʊnɑːdaʊər/ GON-ah-dowr) was a greater deity and the god of abominations. Originally, Ghaunadaur was a member of the drow pantheon but following the War of the Spider Queen he left the pantheon to break off on his own. His portfolio included slimy creatures, outcasts, and rebels.
Ghaunadaur was an unpredictable deity. False worshipers were sometimes rewarded by it, occasionally even with permanent magical boons, but they might just as well have been devoured by the Elder Eye without a second thought. Ghaunadaur enjoyed watching large horrible monsters as they hunted and devoured their prey, causing much suffering. When Ghaunadaur left the Inner Planes he was always silent, but some old records mention a gibbering and bestial language being spoken in the god's court. When communicating Ghaunadaur used telepathy and kept its conversations blunt and simple.
The church of Ghaunadaur consisted of cults scattered throughout the Underdark, each dominated by a single individual. There were only a few drow and aboleth cities that served as exceptions, with a more organized clergy. Ghaunadaur also had an aspect in the tanar'ri lord Juiblex and enjoyed the worship of that guise's demonic cults. Clerics of Ghaunadaur were required to serve the Elder Eye completely and do whatever pleased it most. The main duty of Ghaundaur's clerics was to ensure, in any way necessary, that Ghaunadaur's altars were supplied with a steady supply of sacrifices. Clerics successful in these sacrifices were rewarded with magic power and items. Ghaunadaur enjoyed most of all those creatures that willingly offered themselves to it, whether or not they had been charmed or coerced by its clerics. Those clerics that succeeded in bringing willing sacrifices to Ghaunadaur's altars were its most favored and highest ranked servants. Ghaunadaur encouraged its clerics to familiarize themselves with using and creating acids, poisons and alchemist's fire. All cloth furnishing in the temple and the clothing worn by its worshipers had to be of colors that please Ghaunadaur's eye. These were mostly shades of purple, green, black, and metallic colors. Many clerics also took training as fighters or enchanters.
Ghaunadaur's clergy prayed for their spells once per day at any time the local cult deemed important. The Elder Eye expected each prayer to be coupled with a sacrifice. It preferred living offerings, but when that was impossible it also accepted bones and food which were burned in oil while braziers of perfumed incense were burned as well. If the worshiper could not deliver any offerings to the deity, they were required to perform their prayer while holding one unprotected hand in an open flame.
According to Lolth, "Ghaunadaur was old even before Ao's time." He was a very ancient deity, rumored to have emerged from the primordial ooze itself. In that age, it was worshiped by the largest of slimes and other crawling creatures, many of which contained an alien intelligence. In a fit of fury due to Lolth spurning his romantic interests, Ghaunadaur struck most of them mad and took their intellects. As an unforeseen result, many of these worshipers ceased to exist, which caused the Elder Eye's power to collapse. 
Only during the Age of Humanity did some evil beings turn back to Ghaunadaur, looking for an alternative to the established deities. Ghaunadaur was only a member of the drow pantheon during this time because of the worship of drow that became disaffected with Lolth. Ghaunadaur also had aspects in the form of gods who otherwise did not have any influence over the Realms. It was really Ghaunadaur who answered prayers directed at the demon prince Juiblex and the Elder Elemental God as well as those directed at Gormauth Souldrinker. In 1379 DR, Ghaunadaur, finally fed up with Lolth, left the Demonweb Pits and created a new realm in the Deep Caverns.
Ghaunadaur was thought to have no allies, but certainly, this was not always true. The archomental Bwimb and the deity Moander were both his allies, though they were both dead by the end of the 14th century Dale Reckoning.
Conversely, Ghaunadaur's list of foes was extensive. He was an enemy of nearly every god associated with the Underdark as well as the entire Seldarine (for being a member of the anti-Seldarine), Malar and Gargauth (whom he had usurped the aspect of Gormauth Souldrinker from).
|“||All creatures have their place, and all are fit to wield power. Those who hunt weed out the weak and strengthen the stock of all. Those who rebel or who walk apart find new ways and try new things and do most to advance their races. Creatures of power best house the energy of life, which Ghaunadaur reveres and represents. Make sacrifices to the Eye, persuade others to sacrifice themselves to Ghaunadaur or in service of the Eye, further knowledge and fear of Ghaunadaur, and in the end give yourself to Ghaunadaur in unresisting self-sacrifice. Convert all beings to the worship of Ghaunadaur. Slay all clergy of other faiths, plundering their temples and holdings for wealth to better your own lot and to further the worship of Ghaunadaur.||”|
- ↑ 1.0 1.1 Mike Mearls, Jeremy Crawford (May 29, 2018). Mordenkainen's Tome of Foes. In Kim Mohan, Michele Carter eds. (Wizards of the Coast), pp. 53–54. ISBN 978-0786966240.
- ↑ 2.0 2.1 Eric L. Boyd (1998). Demihuman Deities. (Wizards of the Coast), p. 18. ISBN 0-7869-1239-1.
- ↑ Mike Mearls, Jeremy Crawford (2014). Player's Handbook 5th edition. (Wizards of the Coast), p. 63. ISBN 978-0-7869-6560-1.
- ↑ Rob Heinsoo, Logan Bonner, Robert J. Schwalb (September 2008). Forgotten Realms Player's Guide. (Wizards of the Coast), p. 151. ISBN 978-0-7869-4929-8.
- ↑ Bruce R. Cordell, Ed Greenwood, Chris Sims (August 2008). Forgotten Realms Campaign Guide. (Wizards of the Coast), pp. 63,80. ISBN 978-0-7869-4924-3./
- ↑ Logan Bonner (August, 2009). “Domains in Eberron and the Forgotten Realms”. In Chris Youngs ed. Dragon #378 (Wizards of the Coast), p. 32.
- ↑ Sean K. Reynolds (2002). Deity Do's and Don'ts. A Faiths and Pantheons Web Enhancement. Wizards of the Coast. p. 11. Retrieved on 2014-09-22.
- ↑ 8.0 8.1 Eric L. Boyd, Erik Mona (May 2002). Faiths and Pantheons. (Wizards of the Coast), p. 112. ISBN 0-7869-2759-3.
- ↑ Bruce R. Cordell, Ed Greenwood, Chris Sims (August 2008). Forgotten Realms Campaign Guide. (Wizards of the Coast), p. 74. ISBN 978-0-7869-4924-3.
- ↑ Bruce R. Cordell, Ed Greenwood, Chris Sims (August 2008). Forgotten Realms Campaign Guide. (Wizards of the Coast), p. 64. ISBN 978-0-7869-4924-3./
- ↑ Lisa Smedman (June 2008). Ascendancy of the Last. (Wizards of the Coast), p. 3. ISBN 978-0-7869-4864-2.
- ↑ Richard Baker, Ed Bonny, Travis Stout (February 2005). Lost Empires of Faerûn. (Wizards of the Coast), p. 51. ISBN 0-7869-3654-1.
- ↑ Brian R. James and Ed Greenwood (September, 2007). The Grand History of the Realms. (Wizards of the Coast), p. 15. ISBN 978-0-7869-4731-7.
- ↑ Richard Baker, Ed Bonny, Travis Stout (February 2005). Lost Empires of Faerûn. (Wizards of the Coast), p. 52. ISBN 0-7869-3654-1.
- ↑ Steven E. Schend and Kevin Melka (1998). Cormanthyr: Empire of the Elves. (TSR, Inc), p. 31. ISBN 0-7069-0761-4.
- ↑ Brian R. James and Ed Greenwood (September, 2007). The Grand History of the Realms. (Wizards of the Coast), p. 159. ISBN 978-0-7869-4731-7.
- ↑ 17.0 17.1 Eric L. Boyd (1998). Demihuman Deities. (Wizards of the Coast), p. 18. ISBN 0-7869-1239-1.
- Eric L. Boyd, Erik Mona (May 2002). Faiths and Pantheons. (Wizards of the Coast), p. 111. ISBN 0-7869-2759-3.
|Deities of the Era of Upheaval|
|Ao the Overgod|
|Greater Deities of Faerûn|
|Angharradh | Bane | Chauntea | Corellon Larethian | Cyric | Garl Glittergold | Gruumsh | Horus-Re | Kelemvor | Lathander | Moradin | Mystra | Oghma | Shar | Silvanus | Sune | Talos | Tempus | Tyr | Yondalla|
|Intermediate Deities of Faerûn|
|Abbathor | Arvoreen | Baervan Wildwanderer | Berronar Truesilver | Beshaba | Callarduran Smoothhands | Clangeddin Silverbeard | Cyrrollalee | Deep Duerra | Deep Sashelas | Dumathoin | Erevan Ilesere | Flandal Steelskin | Gond | Hanali Celanil | Helm | Ilmater | Isis | Labelas Enoreth | Laduguer | Lolth | Mask | Mielikki | Nephthys | Osiris | Rillifane Rallathil | Sehanine Moonbow | Segojan Earthcaller | Selûne | Set | Sharindlar | Sheela Peryroyl | Solonor Thelandira | Thoth | |Tymora | Umberlee | Urdlen | Vergadain|
|Deities of the Age of Humanity|
|Ao the Overgod|
|Major Deities of Faerûn|
|Angharradh | Bane | Bhaal | Chauntea | Corellon Larethian | Garl Glittergold | Gruumsh | Horus-Re | Lathander | Moradin | Myrkul | Mystra | Oghma | Shar | Silvanus | Sune | Talos | Tempus | Tyr | Yondalla|
|Other Deities of Faerûn|
|Auppenser | Abbathor | Arvoreen | Auril | Baervan Wildwanderer | Berronar Truesilver | Beshaba | Callarduran Smoothhands | Clangeddin Silverbeard | Cyrrollalee | Deep Duerra | Deep Sashelas | Dumathoin | Erevan Ilesere | Flandal Steelskin | Gond | Hanali Celanil | Helm | Ilmater | Isis | Labelas Enoreth | Laduguer | Lolth | Mask | Mielikki | Nephthys | Osiris | Rillifane Rallathil | Sehanine Moonbow | Segojan Earthcaller | Selûne | Set | Sharindlar | Sheela Peryroyl | Solonor Thelandira | Thoth | Tymora | Umberlee | Urdlen | Vergadain|