Shiva's Edge
Osprey's enchanted katana, forged in the ancient Kingdom of Zeal and said to be able to destroy anything that touches its blade's edge. Like many enchanted weapons, Shiva's Edge has some elemental affinities bound to its magic: namely the elements of ice and "death magic." According to Osprey (and to legend), Shiva's Edge was "forged from the frozen final breath of a dying God," though which God exactly contributed its "frozen final breath" is unclear. It is not, despite the name, connected with the esper known as Shiva.
Even owning this powerful artifact has not helped Osprey to find work since being fired as a result of the ZAPS Corruption Hearings.