Jagged Hammer (3.5e Equipment)
From D&D Wiki
The Jagged hammer is a heavy thick paddle like weapon. it's thick enough to be used as an extensively large and heavy club, except it's square in shape and not round. Around the edge of the bludgeoning part are more than one small straight-edged or seraded blades that stick out a mere half inch and are two inches in length along the edge, including the tip. This weapon offers both slashing and bludgeoning damage because ot it's unique construction. ((Picture coming soon.))
Along with the correct weapon proficiency, you require a strength score of 16 to use it. Each attack takes a -3 penalty, and when you have a strength of 18, it's reduced to -2, a strength of 20 you're at -1, and at a strength of 22 you can use it without incurring any penalties to your consecutive attacks.