Many Talons (NWN)

"The Calling" was an evil that infested the Azaki assassins' guild of Kara-Tur some 200 years ago. It corrupted a minor attendant, and elevated his family in exchange for gruesome service. The attendant's body eventually played host to the creature's soul, and in the chaos that followed, it generated dozens of these weapons, apparently at will, before falling to an unknown sohei.