Priamon Rakesk

Overview
Priamon “Frostrune” Rakesk, formerly of Waterdeep, was exiled for research into dark magic. Priamon stole portal-building secrets from Halaster Blackcloak and is now the primary portal-builder for the Rune. All the portals he builds have secret triggers known only to him that allow him to seal them with a word or to transport the user to an alternate location of his choice.

Year of Lightning Storms
In 1374 DR Priamon was fooled by Khelben "The Blackstaff" Arunsun, his former mentor but now hated adversary, into seeking what he thought to be an ancient Shoon artifact. With this artifact, he planned to take over control of the Twisted Rune. Blackstaff then struck a deal with Sapphiraktar the Blue, the Rune preferring to have the Blackstaff deal with the traitorous Runemaster rather than having to deal with him themselves. The Frostrune's immobilized body was teleported into the Underhalls, where the Mad Mage, in possession of the liches phylactery, could take revenge on his former kidnapper.