The Eye of Shadow

The Eye of Shadow dropped from:
 * Dreadlord in Blasted Lands
 * Hederine Slayer in Winterspring
 * Hederine Initiate in Winterspring
 * Manahound in Blasted Lands
 * Felguard Elite in Blasted Lands
 * Doomguard Commander in Blasted Lands

Prior to his migration in The Burning Crusade, Lord Kazzak dropped this as well.

As an ingredient
This item is used to make:
 * Benediction