Sacred 2: Fallen Angel
Seraphim who watched over the T Energy and therefore over the fate of the entire world. They passed their knowledge on to the High Elves, so that they could benefit from T Energy. But the High Elves let the power over T Energy tear their society apart, and war and strife broke out. Worse than that, the T Energy itself went out of control, turning negative and creating destructive evil in the land.