King Slayer

Made by the Six Mystics, this blade is the only known weapon able to slay the Dragon King. Forged from his own scales, Rowen guards the blade with his life out of fear that it may fall into the wrong hands. The King Slayer, being made of Rowen's scales, is able to perfectly slice the near indestructible substance (the only thing that can cut Rowen's scales are his scales). It is unknown why the blade was forged, but one thing is certain...no one is laying a finger on its hilt.

People have been able to create a substance similar to the scales, but none have been able to fully mimic the effects of the original blade.