GNA-X Guardian X

History
When the Ascent declared war upon the Earth Sphere Federation, it was immediately apparent that they ESF was poorly suited to retaliate. The only means they could effectively retaliate was through the ELS, which the Ascent had earlier crippled. Because of this, the Ascent enjoyed a relatively smooth takeover over much of the territory controlled by the ESF. When an ESF exploration team discovered a hidden hanger within an asteroid at Lagrange 3, the tides began to turn against them.

The Perfect Guardian was able to combat the mobile suits produced by the Ascent. This alarmed the leaders of the Ascent as the ESF now had a viable combat mobile suit to study and replicate. To ensure this threat was quickly eliminated, the Ascent constructed the Guardian X.

The Guardian X, short for Guardian Exterminator, was equipped with the best technology the Ascent could afford. One such technology was the Nanite Reactor. The Nanite Reactor is a small device designed to constantly produces millions of nanites. The nanites are designed to interface with GN-Particles and help maintain the mobile suit. The presence of the nanites grants increased durability, refined GN-Particle usage, and quick "regeneration" of armor. In addition to maintaining the mobile suit, the nanites are capable of slowly reconstructing the MS at the atomic level.

The armor of the Guardian X is constructed out of a new material, Regenium. Regenium is highly durable, able to take several powerful blasts without a scratch. This made the MS neatly indestructible. In addition, Regenium in described as a "growing metal". This is because Regenium naturally repairs itself from the atomic structure up. In conjunction with the Nanite Reactor, this gave the Guardian X rapid armor regeneration.