Rune key

Rune keys (also known as Rune devices, Rune artifacts or Salvation's asunder in ) are unique devices that were created by the Niex. While their original purposes have remained undetermined since the time of the, they have been noted for the profound effects they often have when wielded by sapient life forms such as members of the Forerunner, , or races. Individual Rune keys possess unique powers, most of which vary greatly. A total of 47 Rune keys have been identified and confirmed, while many others are rumored to exist. Their powers are so potentially great, that myths and legends have circulated regarding the usage of such devices in numerous cultures.

Description
The Rune keys