By Sylph.Akibakei 2010-04-29 12:21:54
You have to have it on in order to get the +15 to Elemental, Enfeebling, and Dark. So just think about it having +15 MACC to all these spells. I use it on higher lvl NMs because they tend to be more resistant (of course).
For lower level mobs and pure DMG you are gonna want something with INT, and honestly there isnt a lot to choose from in that department.