Wikia

Earth shamanistic magic (Japanese: 地魔法, lit. chi mahō) draws upon the element and spirits of earth naturally present in the world.

Earth spells use Bephimos, the earth spirit, for power that is used to manipulate the ground. Because they are physical in nature, most cannot harm beings with mostly astral bodies, such as mazoku. They are also mostly ineffective against flying enemies. On the upside, they are relatively easy to control.