Such a Celestial union granted the Nephalem great power. So great was their potential that the demon [[Lilith]] attempted to use their power to build an army. [[Inarius]] put an end to her malicious designs and used the [[Worldstone]] to diminish the power of the '''Nephalem'''. Such is the curse upon the '''Nephalem''' that each successive generation also loses power. In fact, only the first generation who have kept their full potential.