This longsword is rumored to have been forged by Zerthimon for Gith, before their separation into two races: the Githzerai and the Githyanki. Gith used this blade to free all gith-kind from their ages-long enslavement by the Illithids. The sword was said to have been lost in the Nine Hells when Gith ventured there to seek an alliance with Tiamat and never returned.
It has since acquired several owners over the ages, and was most recently used in the Plane of Shadows during the Third Faithless Crusade. Now fully reforged, the power of this ancient artifact has finally been restored. Designed to utilize its power intelligently, the sword adapts to its wielder, giving powers it deems appropriate for its master's abilities.