Vasculio

Originally an apprentice of Erstam, when Vasculio was in Moonshade, he specialized in Death Magic (not like Mortegro, who spoke to the dead). Vasculio was interested in causing death -- quickly or otherwise. He tortured and killed, using the ‘death agony’ as well as Stoneheart to fuel his spells. Tipped off by Mortegro, the Council of Mages went to speak with him and caught him in acts so horrible it was determined he was no longer human, so Filbercio sentenced him to death. Not a week after the execution, Vasculio's tomb was found open and empty. Ensorcio, Vasculio's apprentice, said Vasculio had been working with stoneheart, and his experiments enabled him to escape death (Vasculio once stumbled upon a magic formula which, when used with the blood of an innocent, allowed a dead body to live longer. Moments before his execution, he used this spell).

Note that Torrissio was working with Vasculio, but managed to weasel out of justice, leaving Vasculio to his fate.

Vasculio went to the Skullcrusher Mountains because he knew there was a second source of stoneheart there, and he knew the Moonshade mages would never follow him into the Icelands. Vasculio did not seem to have fully escaped death. His own records show that he used spells and Blood Spawn to keep his body animated, and needed to drink blood out of the living to keep himself ‘alive’ (suggesting that he is actually a vampire).

When the Avatar met Vasculio in Ultima VII Part Two, he was 'sleeping' inside a coffin located in the remains of an Ophidian city beneath Skullcrusher. After offing the Avatar's life in exchange for the lives of one of the hero's companions, Vasculio eventually attacked and was slain in the confrontation. He kept many interesting (but not always useful) items in his abode.

Trivia

 * If the Avatar has the Magebane, Vasculio will offer a different trade. However, with the Magebane it is easy to destroy Vasculio.