Here are the possible solutions for light blade clue
Answer
Clue
Relevancy
saber
Clue
Blade's blade
epee
Clue
Light blade
Definition
(French) a sword similar to the foil but with a larger guard and a heavier blade of triangular cross section
glorybeam
Clue
"The light" of "I saw the light!"?
laser
Clue
Light in a light show
Light-show light
Light show light
Light in a light show, perhaps
Definition
a source of high-intensity optical, infrared, or ultraviolet radiation produced as a result of stimulated emission maintained within a solid, liquid, or gaseous medium