Prerequisite: ability that deals dice of precision damage (such as sneak attack or targeted strike)
Benefit: You gain your precision dice of damage when you confirm a critical hit. If you would already gain the benfit of the extra damage, this feat has no additional benefit. The normal rules for your extra damage apply, such as range, creatures that are immune, and so forth.
Section 15: Copyright Notice – Adventuring Classes: A Fistful of Denarii