Read more about Mordenkainen at: Wikipedia

Official Site: Wizards of the Coast

Mordenkainen is a fictional wizard from the World of Greyhawk campaign setting for the Dungeons & Dragons roleplaying game. He was created by Gary Gygax as a player character only months after the start of Gygax's Greyhawk campaign, and is therefore one of the oldest characters continuously associated with D&D.

Once Gygax was forced out of TSR, Inc., he lost creative control of Mordenkainen. TSR then made Mordenkainen a powerful wizard with strong convictions against moral absolutes, and the leader of the Circle of Eight, a cabal of eight powerful wizards. In fiction associated with the World of Greyhawk, he has played diverse roles as both protagonist and antagonist.

Official publications for the World of Greyhawk sometimes contradict each other regarding Mordenkainen. It is clear, however, that he is an important figure in the fictional history of the Flanaess.

In late 1972, Gary Gygax created Castle Greyhawk and the dungeons beneath it. After a few months of almost non-stop play as the Dungeon Master, Gygax asked one of the players, Rob Kuntz, to become co-Dungeon Master, which would allow Gygax an opportunity to experience the game as a player. Gygax subsequently created several characters, including a 1st-level wizard in early 1973. Gygax was interested in Finnish mythology, and named the wizard Mordenkainen, a portmanteau of the mythical heroes Mordecai and Lemminkäinen. .

Mordenkainen has not been a contender in any CBUB matches.