Entemoch

Entemoch, the Prince of Earth Elementals, is the twin of Ogrémoch, but unlike his evil brother, Entemoch parts with good.

Worshipers. It's unknown what kind of races and creatures worship Entemoch, but the svirfneblin priests of Menzoberranzan know the ways and rituals to summon him. Entemoch has appeared to those deep gnomes a thousand of years ago, just after the Times of Trouble ended. This ritual involves placing green gemstones in a circle and breaking them apart.

'''Appearance. '''Like his brother, he resembles a gigantic earth elemental, like a living mountain. He can also burrow on the groud, mixing up with earth and stones and moving through them without twisting the groud. He can even manifest himself only as a face made of stones in a cavernous wall.

'''Relationship. '''Entemoch maintains good relationship with Segojan Earthcaller, gnome deity of deep earth and nature.

Ogrémoch considers Entemoch an enemy, but Entemoch’s feelings toward his twin brother are unknown.

Source: R.A. Salvatore. Siege of Darkness. (chapter 12) (TSR, 1994)