|Luigi's Beam Sword|
Luigi's Beam Sword is a beam sword that has a green glow with a white core.
In "Act II Part 4," Luigi, whose body was taken over by Nox Decious and became Mr. L, used his beam sword to battle Mario, but his beam sword changed. Luigi's beam sword then had a black core, green glow, and was called the Dark Emerald Blade. Once Luigi fought back and went back to normal, the beam sword became good again.