AncientVolcanomon

AncientVolcamon, a fictional character from the Digimon Frontier series, is an Ancient Mineral Digimon with the power over earth. The power AncientVolcamon possessed lives on in the Digimon that became Grumblemon via the Spirits of Earth created by AncientVolcamon.

Description
With the power of an erupting volcano, he is unable to lose to anyone.

Digivolution

 * Rookie (Child) - Grumblemon
 * Champion (Adult) - Gigasmon
 * Ultimate - Volcamon
 * Mega (Ultimate) - AncientVolcamon

Attacks

 * Atomic Bomber: Makes the volcano on his back erupt to increase his charging speed as he tackles his enemy.
 * Supernova: Causes a huge explosion from his volcano.

Digimon Frontier
He was one of the Ten Ancient Warriors that saved the ancient Digital World from Lucemon's treachery.