Nystul

Nystul is Lord British's royal magician, and one of his closest advisors. He is quite a powerful mage and has a sharp mind. He lives in Castle Britannia.

Nystul first appeared in Ultima VI, where his vision saved the Avatar from being sacrificed. He helped the Avatar with the Book of Prophecies, directing him/her to Mariah, and the Orb of the Moons, directing him/her to Lord British. Nystul was also present, when Lord British and Lord Draxinosum met for the first time at the Shrine of the Codex.

200 years later, at the time of Ultima VII, Nystul was also a victim of the disturbed Ether, having become clumsy and quite senile. Thankfully, with the destruction of the Guardian's generator, his sanity was restored, and he helped the Avatar by selling him spells and reagents.

Nystul was essential for the plot of Ultima Underworld II. He reseached methods of breaking the Blackrock Dome, and gave the Avatar much good advice. Also, he treated the small Blackrock Gems for the Avatar, and later decyphered the Spellbook of Mors Gotha. Together with the Avatar, he managed to free the castle from the Guardian's grip. He cast he important spell from the Spellbook, while the Avatar used the Horn of Praecor Loth.

It is unknown what happened to him after that.

Trivia

 * In a fan patch for Ultima IX, a mage in Valoria becomes Nystul.