They are the undying, ever enduring, ceaseless anomaly.
They have been cursed by Nald'Thal to carry out their accursed massacre of lambs until such a time as sea consumes all.
Ancient Nymian legends foretell of a day when their quivers shall run empty, and on that day, none but Hydalyn herself can save the five races from the onslaught of sheep vengance.