I did it with rocks... throwing a shit ton of rocks at him is great.
I found out how to keep your companions alive.... Git gudXD JK~~
I remember doing this, but you just have to go back to the cave... and have to get more bug repellent.
It is very unlikely that you will run into a fire wand... or any wand in a chest. You get random stuff... so if you want a fire wand, you usually have to buy it.
... It very much depends on your build. You need magic perk before you can use it.
Ah yes... it's a scripted event without any leeway.
Yes. By sneaking around and bonking them on the head as you sneak out with Elise... but there isn't really a point to not murdering all of them.