Obsidian Edge

Acquisition

 * Core
 * Fissure of Woe
 * Chest of Woe

Drop research is ongoing, and can be found here.
 * Zaishen Chest

Dye
This item cannot be dyed.

Trivia
This item was added in the March 6th 2008 update, along with items based on winning designs in the Design-a-Weapon Contest of 2007; however, it was actually designed by an in-house artist, and then forgotten for some time.