Warriors of Earth

The Spirits of Earth were created by AncientVolcamon, the Ancient Warrior of Earth. The Spirits of Earth have the ability to combine with each other or with Spirits of other elements, becoming even more powerful.

Grumblemon
Grumblemon is a Champion-class Hybrid Digimon. He is the Legendary Human Warrior of Earth, using the power of AncientVolcamon. His Japanese name is Grottomon.

Grumblemon wears his handmade "Rot Armor" on his body and wields the "Grotto Hammer". He can also dig through solid rock and open a bottle that releases smoke which can summon Golemon to his command.

Digimon Frontier
Attacks
 * Snake Eye Break: He turns his enemies into stone and uses his hammer to destroy them.
 * Jack in the Box: Leaps out of the ground and attacks with his hammer.
 * Seismic Sledge: Pulls a hammer out of the ground or his armor which he uses to crush his enemies as well as to make the earth crack. The hammer can extend on command.

Gigasmon
Gigasmon is an Ultimate-class Hybrid Digimon. He is the Legendary Beast Warrior of Earth, using the power of AncientVolcamon. His name comes from "gigas", the Greek word for giant.

Digimon Frontier
Attacks Twin Attacks
 * Quagmire Twister (Hurricane Bomber): Spins around like a tornado.
 * Tectonic Slam (Earthquake): Leaps above the ground and makes a ground-shaking landing.
 * Giga Storm: Releases a sand storm from his mouth.
 * Nega Cave [Negative Cave]: A twin attack with Duskmon. Gigasmon makes the earth cracks with his fists, and Duskmon creates darkness energy in the ground fissures.