If I were living, I know you would have been tough. There was only one person I used abstraction for, and that was Thorawyn. He never noticed when I stopped taking his holy ward damage though and didn't react to it by plaguing, poisoning and all the other nasty things he could have done. I think Vezrin really stopped trying because of me being undead as well. It just seemed impossible, but there were times you scared me a bit. Not sure if you could demonfire which seemed to work well for Khellor against me.