Lithos

Lithos is one of the four Elementar Titans of Pagan. He is the Titan of Earth. He also rules over the Dead of Pagan. The school of magic connected to him is Necromancy, the magic of earth. Lithos is like all four Titans, a servant of the Guardian. The Avatar puts an end to him in Ultima VIII.

Like all of the four Titans, Lithos became powerful when the Guardian tricked the Pagans to make them powerful through numerous means. In the war against the Zealans, he shook the earth and devastated whole regions, before assisting the Guardian into mostly destroying the world.

However, after the Guardian moved on, he came into conflict with the other Titans, but primary Hydros, Titan of Water. Lithos demanded high prices for not devastating the land, but still on occassion eathquakes shook the land. It only ended, when the man later known to be the first Necromancer, made a pact with Lithos. He would leave them in peace, and in return, he would get all the dead of Pagan. This went on for many centuries, and Lithos' army became huge.

But it came to an end, when the Avatar arrived in Ultima VIII. At first, Lithos was pleased, that he/she wanted to learn the ways of earth, but after seeing the Avatar get the Heart of Earth, Lithos realized that the Avatar wanted to destroy him, and sent his undead creatures against Tenebrae. But even this last act couldn't save him, when the Avatar confronted him in the Etheral Void, and used the Heart of Earth to drain him of all powers, destroying him once and forever.

Trivia

 * Lithos is also called the "Mountain King" (no wonder, considering his element).