Bounding Hammer (Feat)
You throw a hammer repeatedly at a foe, making a loop of attacks with devastating results.
Prerequisites: BAB +6, Proficient with Light Hammer or Club
Benefit: Each time you attack the same creature after the first in an encounter, you gain +1d4 of bonus damage after the first successful hit, then 2d4, then 3d4, etc. This damage bonus continues to stack with every attack you make against the same foe within the same encounter. You gain no bonus damage on the first hit, but each successive hit thereafter. If you change targets, the bonus damage on the first target is lost.
This bonus damage is considered precision damage and is not multiplied on a critical hit.
Note that if your light hammer or club does not have the returning property (gained for free when it has at least a +1 enhancement bonus), this feat will be very difficult to use.