Rod of Defiance

This crudely shaped, bone-white rod resembles a cudgel.

You can use a rod of defiance in combat as a +1 heavy mace. In addition, each undead creature within 30 feet of you while you hold the rod is treated as if it had 4 fewer Hit Dice (minimum 1 HD) for the purpose of turn or rebuke undead checks.

Prerequisites: Craft Magic Arms and Armor, Craft Rod, turn undead or rebuke undead.

Cost to Create: 3,500 gp (plus 312 gp for masterwork heavy mace), 280 XP, 7 days.

Source: Magic Item Compendium, page 56. Originally published in Libris Mortis, page 78, with a higher market price and enhancement bonus to attack and damage.