[Joelz]

Skavens are pretty great at magic, and have rather nice summons. Most of their recruitable troops are pretty horrid though, with their low morale.
I think their national blood summons are pretty good as chaff, and are quite cheap too. The rat ogres could use a boost. They just don't quite feel like giant muscular rats ripping through enemy lines, since even brettonian peasants can kill them at the moment without too many casualties.
The costructs are useful, and have their uses.