Nine-Tailed Vixen silver sword is a silver sword and part of the Swords of the Nine-Tailed Vixen for The Witcher 3: Wild Hunt. It was released on December 14, 2022 as part of Patch 4.0, the next-gen update, for owning or upgrading to The Witcher 3: Wild Hunt - Complete Edition.
The entire set can be found in Yennefer's room in Vizima, in a chest under a window, along with the White Tiger of the West Armor Set and the Dol Blathanna Armor Set.