Hammer of the Grand Crusader

The Hammer of the Grand Crusader is a two-handed mace wielded by Balnazzar when he disguised himself as Saidan Dathrohan.

It is a dangerous weapon when placed in the wrong hands, and sometimes the right ones. It helps to improve the Haste, Strength and Stamina of its wielder.

Source
This item drops from Balnazzar in the Stratholme Main Gate wing.