Energy Sword (Halo)
Introduced in Halo 2, this weapon created an occult level of popularity due to the game mode Zombies (Or infection as it was also referred to). Now of course, due to the laws of physics and the limitations of science the guys behind Man At Arms couldn’t, unfortunately, make the sword out of plasma.
The Type-1 Energy Weapon/Sword, commonly known as the Energy Sword, is a close quarters weapon of the Covenant Empire, for exclusive use of the Sangheili.
Despite that they still made an exquisite replica with the same color and lethality. Halo’s energy sword is legendary due to its simplicity. It is sword, used in space, by a Spartan. There is no faff, no nonsense, just a deadly weapon. Yet in practice it would have no use in our Earthly battlefields.