Grumblemon

Grumblemon is an Ogre Digimon and a Champion-class Hybrid Digimon whose names are derived from grotto and grumble and whose design is derived from the mythological Gnome. It wields the "Grotto Hammer" and can summon more than one of them.

Digimon Frontier
Attacks
 * Seismic Sledge (Snake Eye Break): Smashes its "Grotto Hammer" into foe.
 * Jack in the Box