"Combat ability doubles the critical threat range with a given weapon. A longsword that normally threatens a critical on a roll of 19-20 would now threaten a critical on a roll of 17-20. The threat range of a Keen weapon is already doubled, and is not further improved with this feat. This feat can be selected multiple times, applying to a new weapon category each time. Special: Halflings and Gnomes are small creatures and as such they can never use the following large weapons: greataxes, greatswords, halberds, scythes, spears, and warmaces."@en . "57"^^ . . "Selected"@en . . "Proficiency with the chosen weapon type, BAB 8, Weapon Specialization"@en . . . "n/a"@en . . . . "Combat ability doubles the critical threat range with a given weapon. A longsword that normally threatens a critical on a roll of 19-20 would now threaten a critical on a roll of 17-20. The threat range of a Keen weapon is already doubled, and is not further improved with this feat. This feat can be selected multiple times, applying to a new weapon category each time. Special: Halflings and Gnomes are small creatures and as such they can never use the following large weapons: greataxes, greatswords, halberds, scythes, spears, and warmaces."@en . . "Improved Critical - Morningstar"@en . .