River of Light

The River of Light is a variant of the Z-390 incineration cannon.

Overview
This incineration cannon was known to Forerunner Warrior-Servants as the River of Light.

The River of Light was one of the first Incineration cannons ever made. Its core was built and refined over decades by an unknown Promethean who effectively used the weapon and served in dozens of containment operations against the Flood.

After the Domain was unraveled, the weapon was originally thought to be lost. However, it was later found in a Promethean cache in a factory that once spun impossible miracles of exotic matter. The forges of this factory were cold and abandoned for a hundred thousand years before the Warden Eternal returned with writs of control, dominance, and resurgence.

While a Promethean Knight can't fully use the weapon's true potential, the artifact's heart knows its name and purpose, and hungers to be remembered once more by warriors whose hearts pump with life and limbs move with purpose and intent.

In October 2558, a copy of the weapon was located in an area on Genesis that Blue Team passed. The weapon has since been integrated into War Games simulations for use by Spartan-IVs.

Gameplay
The River of Light is classified as an Ultra Rare REQ and can be summoned in Warzone at Level 5 energy. The River of Light comes with 25% upgraded battery capacity, a wider projectile arcing trajectory, and faster firing and charging speeds. Its charged shot is different in that it fires a long burst of seven arced explosive projectiles, thereby removing the disintegration aesthetic that other versions of the Incineration Cannon carry. However, compared to the normal Incineration Cannon and Heartseeker, the weapon's battery depletes twice as fast if it is kept charged. Overall, the River of Light is useful for dealing damage onto a large target, such as a vehicle or boss. Unlike the other Incineration Cannons, the River of Light cannot kill a campaign playable character and make them unrevivable.

In Warzone, Legendary Promethean Knight bosses mostly use the River of Light as their primary weapon, while Mythic Knights are usually armed with the advanced Heartseeker instead.

Trivia
This weapon is one of the hidden weapons that can be found in the Halo 5: Guardians campaign, found in the mission Reunion.

List of appearances

 * Halo 5: Guardians