Light's Justice

Light's Justice is an epic one-handed mace.

Source
This item drops from Prince Malchezaar in Karazhan.

Trivia

 * Light's Justice is an Uncommon Weapon card in the World of Warcraft: Trading Card Game's Drums of War set.
 * Light's Justice appears as a basic weapon for the Paladin class in Hearthstone. The flavor text reads: "Prince Malchezaar was a collector of rare weapons. He'd animate them and have them dance for him."