The Night Shade of Greyhawk and the Hallowed Revenant Amphoras
Appearance varies, though he is usually garbed in blue and silver. A short, heavyset human with round, often flushed, face.
Mordenkainen appears much younger than his years, perhaps in his mid-forties. He is tall, of medium build and often depicted wearing black, blue, or grey. He wears a Van Dyck beard (a mustache with a goatee) with two prominent grey streaks. Its shape has changed over the years, and in recent art is narrow and pointed, but was originally broad, covering the whole chin. He once wore his graying black hair at medium length, but since 591 CY has been shaving his pate bald, as well as trimming his goatee to a fine point. He speaks with a deep, melodic voice.
When traveling, Mordenkainen often disguises himself as a short, heavyset human with round, often flushed, face.
Mordenkainen can be stubborn and difficult, and does not tolerate fools. He normally spends much more time listening than talking, but when he does speak, his pronouncements are authoritative and rarely questioned.
Mordenkainen's fortress, the Obsidian Citadel, is a symmetrical castle in the Yatil Mountains. Of past and current members of the Circle of Eight, only his former adventuring companions Tenser and Bigby know its exact location. It is defended by its location in the harsh windy mountains, by illusions and other disorienting magic effects that extend into the Ethereal Plane, by wards against teleport, plane shift, and similar spells, and by the soldiers in Mordenkainen's employ.
Greyhawk authors Carl Sargent, Erik Mona, and Gary Holian imply that Mordenkain was born 509 CY. His birthplace is unknown, but before coming to prominence in the early 560s, he is thought to have resided on the Wild Coast. He also resided for a time in the City of Greyhawk, as well as Highfolk. He is rumored to be of Oeridian blood, possibly Aerdi. Some claim that he is a descendant of Ganz Yragerne, first Landgraf of the Selintan, which would mean he's also related to Zagig and Heward. According to some sources, he is distantly related to House Cranden, one of the royal houses of the Great Kingdom of Aerdy.
About 561 CY, with his young apprentice Bigby, the warriors Robilar and Yrag, the clerics Riggby and Serten, the ranger Otis, and fellow mage Tenser, Mordenkainen formed the Citadel of Eight. The group was named for the Obsidian Citadel, Mordenkainen's stronghold in the Yatil Mountains. The Citadel disbanded after the Battle of Emridy Meadows in 569 CY, which is regarded by many as one of the most important events of the sixth century. Only Serten was present at Emridy Meadows, and he paid with his life.
Two years later, Mordenkain formed the Circle of Eight, a cabal of eight wizards with himself acting as the ninth "shadow member" and leader. Mordenkainen felt that the failure of the Citadel was due to its composition. He felt that such a group as he envisioned could only succeed if its members were "men of intellect and sorcerous skill, whose primary interests were more than material."
Role and philosophy
Mordenkainen's role in the setting is quite an unusual one – he has been described as a form of one-man peacekeeping force. Trying to prevent wars and conflicts, he operates according to some bizarre theory based on power balance and Neutrality, trying to keep neither Good nor Evil from getting the upper hand. Exactly how this is done is not entirely clear, but he is very manipulative and operates very much from the shadows.
"Mordenkainen the Archmage formed the Circle of Eight as a tool to manipulate political factions of the Flanaess, preserving the delicate balance of power in hopes of maintaining stability and sanity in the region. Mordenkainen's view of 'enforced neutrality' is not a tit-for-tat equality but rather a detailed theoretical philosophy derived from decades of arcane research. He has fought ardently for the forces of Good, most recently during the Greyhawk Wars, but just as often has worked on darker plots to achieve his ends."
Mordenkainen has made many enemies over his lifetime, among them Evard, Iuz, Kermin Mind-Bender, Rary, Terik, and Sir Robilar. He also has many allies, including the lesser deity Dalt. He can sometimes be spotted visiting with his distant kinsman Heward, or traveling with Keoghtom and Murlynd, with Zagyg and Keoghtom, or with Keoghtom and Heward. Of course, he has access to the full resources of the Circle of Eight.
He is distantly related to Heward, Zagyg, and Bigby. Bigby was at one point his apprentice. A current apprentice of Mordenkainen's appearing in the "The Wizards Three" articles by Ed Greenwood is Rautheene.
The "Wizards Three" articles also state that Mordenkainen is an associate of Elminster of the Forgotten Realms setting and Dalamar of the Dragonlance setting, occasionally meeting with them on the world of Earth to swap news and magic.
Mordenkainen's citadel is defended by the 12th level lawful neutral fighters Eraj and Felnorith, who ride trained griffons. His elite troops include dwarves, gnomes, and humans. Mordenkainen is also allied with a tribe of stone giants, who helped build his citadel, and a tribe of cloud giants, who offer him assistance in remembrance of his aid in defeating a flight of evil dragons who were wreaking havoc on them in 575 CY.
Mordenkainen has many friends and aides in the City of Greyhawk, but his most important are Jallarzi Sallavarian, Otto, Nyara Falconsbane and Ravel Dasinder.