Has anyone survived killing Sulfras? It was a bit tough killing him (or her--can never keep dragon gender straight), I couldn't attack his guards--when I went to where they were casting spells at me, insteading of being able to attack, I was just blocked. One of them, though, at some point did become a regular stone statue (was that Erika's spy?), which I could attack.
Are the guards (black shades?) attackable if you do something first? Can they be targeted with spells (since there are no area spells in A1)?