Vassal Katana

The Vassal Katana is a symbol of national strength in one of the country in Glass' world.

It's stored under heavy security in an official government building in the capital. People can look at it, but apparently it's very difficult to even be considered for selection to wield it.

Hero of the Katana
The Katana Hero, Raphtalia. Wielder of the Vassal Katana.

She obtained the Vassal Katana while travelling in Glass' World. The Vassal Katana choose Raphtalia as its user instead of Trash #2.

Abilities
The Vassal Weapon's passive ability removed Raphtalia's curse slave seal.