I just have to say, this is what is great about Dominions. Little things that you arn't looking for suddenly taking you by surprise. Hence, the love of MP.
But, if next time you want perhaps a better idea, you can try the widely availiable Magic Item Quickref back when I was ambitious. Find it
here on Arryn's Dominions site. She has kept that thing alive and up to day despite the somewhat haphazard nature of the community here. The site is also chalk full of maps, mods, and other cool things to try after the basic game/map lose their luster.