I'm probably being unhelpful here, but this page is correct regarding the weapon's baseline damage w/ reinforcement. If you're looking at its damage with exact scaling bonuses according to your Str/Dex/Fth... well, I don't really understand how those numbers work, so I'm afraid I can't confirm that. I recommend this page, however, because it is generally correct enough to be reliable. That said, if this is the sword you want to use, go for it - once you master its special ability and supplement that into your combat technique, it is, analytical numbers aside, definitely worth it, esp. for Faith builds. A disclaimer, though: I personally subscribe to the "Fashion Souls" type of playing (I was a bleed cleric w/ Fth/Dex/End, using an unbuffed Corvian Scythe, Blood Crow Talons, Curved Wolf Greatsword, and Filianore's Chime, w/ Pontiff's Left Eye - i.e., crappy equipment choices), so I base equipment choice on taste, not numbers.