Halo Master Chief Helmet

An incredibly dangerous artifact that must never be activated

Appearance
Seven T-shaped piece of metal embedded with lights of the following colors: Brown, blue, red, white, green, grey, and yellow.

The blast that emanates from each will correspond with the light.

Creation
The Indexes were created for and displayed at a fan convention. Infused with the belief, fear, and respect of over a hundred fans, the items developed the incredible, deadly power of the Halo Array.

Collection
Unknown at the moment.

Abilities
When the holder says the phrase "Ignite the Ring(s)," the lights on the Index will glow brightly and release a ring of light that will spread for up to two miles, killing everything with calcium levels greater than or equal to that of humans.

However, if people within that radius are using a protection-type artifact (the strength of said artifact doesn't matter), then the wave will not kill them.

Connections
An Activation index is a device used to activate the Halo array and destroy both the parasitic Flood, as well as its food: Sentient life with calcium.

Trivia

 * Originally, the weapon only effected brain capacity. It was changed to calcium because that is the Flood's dominant food source.