1) Heh. I've been asked this many times before, and although part of me wonders what's the point of all "who's more powerful?" questions, the answer is: it depends. In terms of raw personal BATTLE power, the answer is likely Vecna. Though so much of his power is... #Realmslore

I wonder, if a demi-lich decided to come back after a few millennia of walking strange planes, what powers he might have acquired...and what his motivation might be.