Efficiency of Frost and Flaming Death dome?

[Cohen]

Someone of you have ever seen someone killed by the effect of these 2 domes?
I've never seen no enemy spellcaster dead ( but instead is very funny to read the message when you're victim of the enemy dome and you're immune to that element ).

[Chazar]

Maybe that due to people scouting before casting? Then it would at least force them to forge appropriate protection...

Nevertheless, I found it a waste to establish a frost dome against Ermor...