Type-8 Energy Weapon/Glaive

The, or Energy Glaive, is a weapon used by the USR

Description
The Energy Glaive is a large sword used by the Sangheili; set on a six foot staff, the Glaive's blade is set at one end. When not active, there are merely a few pieces of metal protruding from the staff, which, while capable of bruising and stabbing, are not truly that lethal. Once the energy is activated, however, the energy fills in the gaps and extends further, becoming a true and deadly blade.