I see... Still, I must say that I underestimated the power of Raging Nimbus until quite some time ago. I had once thought that it wouldn't do too much damage, and had put off modding it until later.
As a result, I was used to just using Glacial Thorns for everything, like you do in your boss battle video. While Glacial Thorns is strong enough to deal with bosses and mobs alike,
I must say that I like the power of Raging Nimbus and that I am now aware of the Area of Effect capability of the Ice Elves.