The darker half of Uman Zathroth, was essentially corruptive. Zathroth was a vain god who was painfully aware that his own creative powers were poor. Because of this he looked at Fardos's work of creation with jealousy, and from the very beginning he was determined to prevent or at least corrupt it in any way he could. Fardos, who did not suspect this, asked him for assistance because he had accepted the fact that he could not achieve creation on his own, but of course Zathroth denied.