Greathammer

A knife may inflict 5 points on a hit, but a Greathammer would inflict 25 points of Damage, shatter bone, and severely dent a suit of armour. This reflects the differences in size, weight and design of various weapons.

Source: wiktionary

[…]some gigantic man spinning a polearm or greathammer—struck her sister a solid blow in the chest, knocking the woman to the floor. The hammer danced, and the woman holding it rushed to capitalize on the heavy strike she had just landed.

Source: wiktionary

Just to the left of these is the final Rhogar Statue we can destroy with the Tor Greathammer for the final piece of the Armour Set (Chest - Last Traitor).

Source: wiktionary

White Hair Ancestor looked carefully, only to see that in Qin Feng's hand, a pitch black octagonal greathammer had already appeared. "Hello..." "Then ..." Qin Feng bellowed, and threw the Sky-splitting Hammer over to the other party.

Source: wiktionary