Demandred's Arc (Full Spoilers) in Wheel of Time Books Posted February 16, 2013 The problem with that is Rand would only be able to do it once. He would be able to outmatch Demandred for power with Callandor, but he would then be burned out or dead from drawing so much of the power, leaving him useless against the DO/ whoever was left. Possibly. I think the Power level of both sa'angreal are quite close, either way, he would be far too tired from the battle to face Shai'tan. That is the problem of building up Demandred for many books and giving him too many tools. Only a lucky few Forsaken had angreal and Aginor stated at the Cleansing that Callandor would make him supreme. Little strange that Demandred would be able to ferret that sa'angreal.