Hammer

There are several blunt weapons called hammer:

Persona zeushammer 

A warhammer with an embedded EMP capacitor. Upon impact, it blasts the target with an EMP burst in addition to the physical damage.
This weapon has an onboard persona that can bond to only a single person. The wielder and intelligent weapon can synchronize their reflexes and attack with frightening speed, accuracy, and creativity. Once bonded to a wielder, the weapon's persona will refuse to be wielded by anyone else.

Warhammer 

A long polearm topped with a brutal hammer. The powerful blunt impacts can pulverize an enemy's insides, even through armor.

Zeushammer 

A warhammer with an embedded EMP capacitor. Upon impact, it blasts the target with an EMP burst in addition to the physical damage.