Hey Chariot, I was never too heavy into Power Rangers, but this is cool.
After looking at a picture of Koragg's sword, I thought that maybe the handle of the sword could be just a little thicker.
Here's a picture (It's large be warned):
"Koragg's Sword and Shield"
That is a very interesting way to keep your sword sheathed. It kind of reminds me of the charged blade from Monster Hunter.
"Charged Blade Attack"