Grumblemon (Frontier)

Grumblemon is a fictional character from the Digimon Frontier series. He is the Legendary Warrior of Earth, using the power of Ancient Volcamon. An oni digimon, Grumblemon is a proud figure who hates to be bossed around. He has an overconfident personality, and insults his enemies any chance he gets. He was the first of the Evil Warriors to surface, slide-evolving to Gigasmon. He managed to take Tomoki & Izumi's spirits.

However, when Takuya first became Burning Greymon, Grumblemon lost his beast spirit to Takuya and Tomoki regained his spirit. Grumblemon was eventually defeated by Junpei as Metal Kabuterimon, who scanned his spirit as Izumi regained hers. Grumblemon's human spirit was transfered into Takuya's D-Tector with the beast spirit so Takuya could Hyper-Spirit Evolve to Emperor Greymon.

In Japan, he was named Grottomon.

Abilties
Grumblemon wears his handmade "Rot Armor" on his person & wields the 'Grotto Hammer'. He can also dig through solid rock & summon Golemon to his command. As Gigasmon, he is a giant whose skin possesses a firmness that is above ceramics.

Grumblemon

 * Snake Eye Break: He turns his enemies into stone & uses his hammer to destroy them.
 * Jack in the Box:

Gigasmon

 * Hurricane Bomber (Quagmire Twister): Spins around like a tornado.
 * Earthquake (Tectonic Slam): Leaps above the ground makes a ground-shaking landing.