Lightsaber (Warriors of the Galaxies)

"Congratulations you handled a Lightsaber"

- Bryan Steve Cage to Eren Yeager

a Lightsaber was a weapon that ignites the Energy Blade from it's Hilt.

Details
It's Material for the hilt is Metal and the Blade Material is Laser Energy

Invention
the Colors are depending on the Lightsabers they are Either Natural (for the Jedi) or Red/Black/Gray (for the Sith)

Use
the Jedi or the Sith uses the Lightsaber as the Weapons

Obsolescence
the Colors are Blue, Green, Purple, Yellow, Red, Black, and much more

Behind the scenes
this Weapon is from many Star Wars Movies and Video Games