Earth Elemental

Earth Elemental (アースエレメンタル) is a spirit that occupies a mass of earth.

Appearance
Earth Elementals were said to be weird chubby-looking things, smaller than humans and with arms too large for their bodies. Though their sizes can range depending on the level of summoning.

Abilities
Presumably Earth Elementals have an affinity over earth and had resistance against physical attacks. However earth elementals were weak to acid and shockwaves.

Trivia

 * Schoen had previously seen Earth Elementals before, though the ones he had seen paled in comparison to the one that Decem Hougan summoned.