"Holy shit, I totally thought I was a goner back there," Kilzachs sighed in relief, after I used Restoration Magic on him to nullify the poison and heal him.
In addition to the poison, he'd been covered in severe burns, from when he burst out that huge fireball. He must have frozen time around himself to minimize the damage, but he still got pretty badly burned in the process.
If I hadn't poisoned him before that, he would've most likely won that fight, he teleported behind me in the split second it took me to use Restoration Magic to restore my eyes. If he hadn't collapsed, I wouldn't have been able to get away in time.
I have to say, I'm pretty impressed. Not only is he super powerful, he's not afraid to put himself in the line of fire, pun intended, to gain the upper hand and create an opening against his opponent. That was a really good last move...in the end, super glad I won, that was fun.