Dark Sun: The Scorched World of Athas
Ralo was once a miner in the iron mines of Tyr but he escaped when the mines were attacked by a group of Hejkin. Since then he has wandered the watelands surviving with the aid of his preserving magic.
His divination magic allowed him to learn of the crazed lizardfolk shaman called the Wastewalker who uses primal storms, like the obsidian storm, to destroy arcane magic users. His magic was able to help locate shelter for Morg and his companions as they were pursued by one of the obsidian storms.
He was later killed in the caverns.