Stronger Akaviri Katanas

Does exactly as it says - makes the Akaviri Katanas and Dai-Katanas stronger: as strong as Elven weapons and the Katana is now as fast as a shortsword.
Does exactly as it says - makes the Akaviri Katanas and Dai-Katanas stronger: as strong as Elven weapons and the Katana is now as fast as a shortsword. I plan to try make them a leveled item at some point, but not quite sure how to do so yet...