Mythical creatures and monsters
In Greek mythology, Zelus is the personification of urgency and striving, but also of lustful jealousy and fierce rivalry.
Zelus was the daughter of Styx (goddess of hate) and the titan Pallas (characterized by fighting). Her sisters are named Nike (speed and victory), Biá (violence) and Kratos (strength).
Together, they helped Zeus fight the titans. Their reward for this help was a promise that Zeus would protect them forever and they would stand by his throne.