Dwarf Crusher

This enormous greatclub bears thick patches of rusted metal bracing a spiked stone weight set within the gnarled head.

This Large +1 adamantine greatclub can only be activated by a bearer who has a Strength of 21 or higher and the Power Attack feat.

When it is activated, the next attack you make with a dwarf crusher in that round against a dwarf, a construct, or a creature that has the earth subtype is treated as a touch attack. You must also take at least a –⁠5 penalty on this attack roll using the Power Attack feat in order to gain this benefit. This effect functions three times per day.

Prerequisites: Craft Magic Arms and Armor, bull’s strength, giant.

Cost to Create: 6,000 gp (plus 3,010 gp for Large adamantine greatclub), 240 XP, 6 days.

Source: Magic Item Compendium, page 51.