Vilgax's Sword

Vilgax's Sword is weapon formerly used by Vilgax.

Use
Vilgax's Sword is a sword that can project energy beams and coat its blade in flames, or crystals able to refract energy blasts such as Chromastone's. Even without the flames or crystal, this sword is incredibly sharp, able to easily cut though stone, Chromastone's body, and even an entire space ship with a single stroke.

Vilgax lost his sword in The Final Battle: Part 2 after transform himself into his giant squid form. Probably this artifact is still lost in the sea.