Arzakon

Arzakon was a planeswalker that convinced the five Guild Lords of Shandalar to turn on the Guardian and seek powerful magical artifacts to cast the Spell of Dominion. The Guild Lords believed the spell would give them control over Shandalar, but in truth, the magic would seek out and destroy the artifact containing Lim-Dûl's soul powering the Great Barrier. Arzakon's plan was thwarted by a young mage, and he was banished from the plane.

Arzakon was the villain of the MicroProse computer game.