Gaiomon

Gaiomon (GaiOumon in Japan) is a fictional character from the Digimon franchise, a Mega Level Dragon Man Digimon. Although his name lacks the prefix Grey, he is still a part of the Greymon-Family as stated in his Japanese Profile.

Description
Discovered in an Orient computer. He has the appearance of a Samurai, and has two swords "Kiku Rin". He can shoot a spark from the swords. His appearance is reminiscent of the brave hero WarGreymon X and war record was a surprise when discovered. Similar to the war record of a War Greymon X. Called "Samudramon" in the Digital Monster D-Cyber Special Limited Edition.

Digivolution

 * Fresh (Baby I) - Dodomon
 * In-Training (Baby II) - Dorimon
 * Rookie (Child) - Agumon X
 * Champion (Adult) - Greymon X
 * Ultimate (Perfect) - MetalGreymon X
 * Mega (Ultimate) - Gaiomon
 * Mega (Ultimate) - Omnimon X (+ Master Tag)

He replaces WarGreymon X in Pendulum X 1.5.

Attacks

 * Gaia Reactor: Concentrates energy from the atmosphere to create a large explosion.
 * Rinkazan (Will-o'-the-Wisp Slash): Severs the enemy with the tracks of light from the Kiku Rin.
 * Rinkageki (Extreme Slash): Produces an arrow of light from the Kiku Rin.

Note: According to his Profile.

D-Cyber Manga
Masuken was under the control of a MetalPhantomon in Chapter 2 and Hikaru receives a message from Masuken on his Digital Monster D-Cyber Version 1.0 to head North and find him at MetalPhantomon's lair. A battle ensues and Teru tells Hikaru not to argue with Masuken and that he wants to remain in the Digital World, believing Masuken that MetalPhantomon will give them power. Hikaru strikes Teru and tells him to wake up. In doing so, Teru is rendered unconscious. Masuken believes Teru murdered and orders his Digimon to come out, a Gaiomon (Samudramon in the Digital Monster D-Cyber Special Limited Edition and GaiOumon in the Digimon Chroncile). Hikaru's Digimon Death-X Evolves to a DexDoruGreymon in his grief and guilt. In trying to recover Teru, Hikaru realizes Masuken's trap and that the Teru before him isn't the real one, an illusion. Masuken switched the real one to anger Hikaru. Masuken tells orders his Gaiomon to kill him and send him to the "God of Death", but his Gaiomon is defeated by Hikaru's DexDorugoramon.