Xiedu seems genuinely impossible. I've spent almost a day on it and still don't see any viable options. In two months, a computer will spawn with hundreds of archangels, gloves, and boots, and there's nowhere to run. There are people who have completed this map in WoG (without WoG modifications), and they say it's impossible in SoD. Honestly, this is the first map in my experience where it's not even clear what you can do to survive. We'll have to think about it...