ATHLON-class Mjolnir

ATHLON-class Mjolnir is a variant of the GEN2 MJOLNIR powered armor used during live-fire War Games exercises. It contains multiple layers of redundant safety systems to reduce the chance of injury in such exercises. Developed by Misriah Armory, it is much sleeker than most MJOLNIR variants, reminiscent of the series' Contoured-pattern gauntlets and greaves. The Athlon helmet features an inner layer with a magnetorheological dampening system specifically crafted for Spartan physiology.

Halo 5: Guardians
Unlock: Common REQ card Available skins: Champion, Cynisca, Iccus, Lycinus and Varazdat Cynisca unlock: Uncommon REQ card Iccus unlock: Rare REQ card Lycinus unlock: Common REQ card Varazdat unlock: Common REQ card Champion unlock: Legendary REQ card (Limited)
 * Helmet Description: The ATHLON helmet's inner layer uses a magnetorheological dampening system perfectly tuned to the peculiarities of the Spartan physiology.
 * Body Description: Multiply -redundant safety systems in the ATHLON significantly reduce the chance of major injury during live War Games.
 * Champion Helmet Description: CHAMPION armor requires a full team of technicians on hand to repair and retune the suit between each War Games match.
 * Champion Body Description: A rebuilt and retuned version of the Athlon armor, the CHAMPION is a temperamental creation that requires constant maintenance in exchange for optimal performance.

Production note
The Athlon suit was first shown in the Halo 5: Guardians Multiplayer Beta announcement trailer. The permutation is part of Breakout, a new game mode in Halo 5: Guardians. Athlos is a Greek word meaning ″contest″ (eg; triathalon and the root of the word "athlete") and alludes to the E-sports-oriented nature of Breakout.

Trivia

 * The Athlon armor skins are named after ancient Olympic athletes: Cynisca, Iccus of Taranto, Lycinus of Croton, and Varazdat.

List of appearances

 * Halo 5: Guardians