Hammer of Righteous Might

Source
This item is made by blacksmiths with a skill of 365 or higher. Interestingly, as of patch 4.0 this is the only two-handed mace in the game with a spell power bonus.

Materials required:
 * 16x
 * 12x
 * 6x
 * 2x

The recipe for this item is taught by, a world drop.