Warhammer

Warhammer is a weapon that uses crush-based damage, and is

suitable for crushing or puncturing iron armour.

It's also rather difficult to use, often resulting in misses in inexperienced hands.

''A foreign clubbing weapon designed to crush or puncture iron armour. Warhammers concentrate the force of a mace into a smaller area, and are consequently more difficult to use.''

- Game Encyclopedia