Skaven

The Skaven are a species of rat-like humanoids known for being extremely cruel and treacherous. The Skaven operate in an underground intercontinental empire known as the 'Under-Empire' ruled by the council of 13; 12 of the most powerful Skaven warlords with a space reserved for their god; the horned rat. The Skaven are similar to Orcs in that they reproduce extremely quickly and are constantly fighting other races and each other for the sake of their own individual standings and dominance of others, while they also share the Dark Elves sadism, extreme cruelty and narcissism and the capability of reshaping flesh to create horrific monstrosities.