The game uses a glowmask which is an image that tells the code which pixels to make glow. I used the wiki to find which image is the exact glowmask for this weapon and I edited the glowmask to be entirely transparent so no pixels would be affected by the glow.

Looks Great, how did you get rid of the glowing part of the blade on the original flying dragon

Nice bro

This is a pretty nice and underrated mod