The Skaven are a race of evil rat-men who inhabit the underground of the Warhammer world. They gnaw at the roots of civilization, preparing for the day when their uncountable hordes will overrun the surface world.
On their own, Skaven troops are almost invariably outclassed by their enemies. Skaven, though, have one main thing on their side: numbers. They can deploy a large amount of large units, and their morale is bolstered by the presence of so many of their kind.