I've already got every bloody bit of stamina boosting equipment on that I can manage. Tried to run circles around him to wear him down - no apparent effect and my speed is supposed to be twice his. Tried to summon enough blocking creatures so I could stand off and fire at him - the blocking worked but I got only a single arrow hit out of 25 fired. Tried switching to melee weapon - he immediately started summoning creatures and soon I was dead without even getting in a single hit. I'm thinking that sneaking and sniping aren't going to work when my hard-earned archery skills suddenly seem to be useless. Maybe it's time to go back to being frustrated by Sacred.