Auriga Xiphos

Cannot be auctioned, traded, or bazaared, but can be delivered to a character on the same account.
Can be obtained as a random reward from the Gobbie Mystery Box Special Dial and similar sources.

Auriga, the charioteer, is a constellation in the northern sky. Its brightest star is the binary star Capella, associated with the mythical goat Amaltheia.

The xiphos (ξίφος) is a double-edged, single-hand sword used by the ancient Greeks. It was a secondary battlefield weapon for the Greek armies after the spear or javelin, and as such was only used after the primary weapon was discarded. The xiphos had a blade approximately 65 cm in length, and was good for both cutting and stabbing attacks due to its leaf-like shape.