The Seven Mortal Sins

Celestial / Cosmic

Seven humans; scholars from Dawn, try to usurp the gods of The Fate to gain power over life and death. They are ultimately unsuccesful and get punished by the goddess Rapha and the god Rashjo, who turn them into the Seven Mortal Sins, corrupted by fiendish magicks and cast into the fiendish planes as punishment.   This also breaks the covenant that protects mortals from the fiendish planes for the humans, and henceforth all human souls are susceptible to a corruption that can turn them into something called a "thiefling".