Fezzik Goldsprocket

A gnomish wizard who traveled with the Planeswalkers in 1489-1490 DR. He owned a magical airship known as a spelljammer that he used to travel through the planes. He often alluded to the fact that he may have stolen the ship from Halruua.
After leaving the party for the first time, he traveled to Halruua to "return" the ship but found the entire kingdom had disappeared. He went looking for it, finding it floating through the Astral plane. Githyanki had taken over the floating kingdom, killing its human denizens and enslaving their Githzerai allies. Fezzik helped free the Githzerai and organized an uprising that drove the Githyanki out. One of the Githzerai, a monk named Krozag, vowed to follow Fezzik and protect him until his death.
Fezzik returned to the material plane in time to warn the Planeswalkers about the coming modron march, which he had observed from the Astral plane. With the help of the spelljammer, they made it to Waterdeep in time to stop the invasion.
Fezzik and Krozag traveled with the Planeswalkers when they sought to reach the plane of Ysgard, traveling first to the city of doors known as Sigil in the center of the multiverse. During the course of their travels through the planes, the spelljammer crashed and was irreparably damaged. Having lost his ship and his first mate Krozag at the hands of a Dracolich, Fezzik decided to return to Westwood Keep with the Planeswalkers.
Fezzik managed to return to the material plane with parts of the ship, but miscalculated and teleported himself and the remains of the ship to a cavern deep beneath fourth peak in Mithral Hall. He decided to build a home around it, with the support of the Dwarves of Mithral Hall. Eventually, he retired from adventuring and started a magic shop out of the remains of the ship.