Type-1 energy sword (Earth-5875)

"A noble and ancient weapon, wielded by the strongest of sangheili, requires great skill and bravery to use, and inspires fear in those who face its elegant plasma might."

- - Fleetmaster Thel 'Vadamee

The Type-1 energy sword, also commonly known as the energy sword or rarely the plasma sword is a ancient and traditional sangheili close-quarter weapon, which is intended to in fact, represent the personality, honor and skills of those who possess them.

History
The energy sword is a signature weapon to the sangheili, having been their primary weapon even before their war with the san'shyuum, its precursor being the curveblade. The sangheili are prideful of their skills and position, represented through the weapon, which was widely regarded as sacred. Many are very attentive and strict as to who can be worthy enough of training in the art of swordsmanship. To civilians, only aristocrats are able to wield energy swords, and those who do are not eligible for marriage, though many still choose to have sex with any female that they choose.

In the Covenant, there was no restriction to the use of energy swords, although many, such as Minors, felt they were unworthy of holding one. However, Storm, Ultras, Zealots, Generals, Special Operations, and Honor Guardsmen are generally seen sporting them.