Blighted Rod

Acquisition

 * Core
 * The Underworld
 * Underworld Chest


 * Nightfall
 * Necromancers

Drop research is ongoing, and can be found here.
 * Eye of the North
 * Chest of Kathandrax
 * Chest of the Slaver
 * Mountain Heart Chest
 * Prismatic Chest

Dye
Dye affects the entire wand. The default color can be closely replicated using brown dye.