I'm running a totally vanilla character in Skyrim: Nord, half-casting (destruction), half-bashing (one-handed sword specialty), heavy armor. I was on my way to Karstholm on the Blades quest and ran into Soljund's Sinkhole. I ran through it pretty easily solo, but got my butt handed to me by the Draugr Wight Lord at the end. After several more solo attempts, drinking all sorts potions and whatnot, I gave up and ran past him, only to get my butt handed to me by the blood dragon waiting outside. So, after reading this question, I headed back to town and picked up a companion (Lydia, from the Dragonsreach quests). I thought I'd give another shot at the draugr before going after the blood dragon. She didn't help much at all, or maybe I just don't know how to let her tank.
Any tips on how to beat this guy? Are there switches that turn off the automagic fireball shooting thingy? Are there especially effective attacks/spells/shouts that work?