Well I assumed you meant a Draunadan but then you said "double the cost". A Sortilege isn't "double the cost" of a Draunadan. Even a Blackbolt is less than half the cost of a Sortilege. Sortilege is also a slower cast staff, so you should expect extra damage. Not rocket science. As you said: Which is why it seemed odd that you'd say "double the cost". The Vielron Ingot alone could buy you 7-10 Draunadan. Declining marginal benefits for increasing marginal costs is built into just about everything in Darkfall. In fact the one good thing about the staff patch was the increase in high end staff costs. It's the lower end of the market I'm currently concerned about.