Mavrickindigo's Rise of the Runelords
Lord of the Boiling Sky?
Avaneidardax is the self-proclaimed Lord of the Boiling Sky, Baron of blistering winds, master of sapping storms. He lives in a pile of armor in Tirana’s Lair and controls the power of lightning. He squared off with the Stranger, and got a shot in on him, but left him and the party alone when the Stranger left his chamber.