Technically defined as a tool,the Onyx Rapier is a melee weapon that deals slashing type damage. It deals greater damage than either the Diamond Rapier or an ordinary Rapier. It is found in the tools section of inventory.
How to Obtain
It can be crafted or traded.
The onyx rapier is useful when fighting mobs. Due to it's slashing type damage, it is more effective than a sledgehammer or tesla club at fighting organic mobs. It cannot be used in PvP against other players.