Arella unwittingly became the bride of the evil inter-dimensional being known as Trigon, but shortly after the wedding Trigon made love to her and then abandoned her rather than make her his queen. Through this union, Arella gave birth to Raven and raised her in the peaceful realm of Azarath. Despite Arella's efforts, her daughter was bound to Trigon by a prophecy which entails the subjugation and destruction of all life. Arella forever gave Raven her love, even knowing what she was destined to become: a vessel for Trigon's evil.
When the prophecy was about to come to pass, Raven desperately sought out Azarath for help, only to find the city at first apparently deserted. A white dove led Raven to her mother, who could offer neither help nor comfort since the prophecy was inevitable. Right afterwards, it was revealed that the sound state of Azarath had been in fact a cruel illusion: The city was destroyed and in flames, and its people, including Arella, had apparently perished. But after Raven defeated Trigon, She was restored along with Azarath.
- When the spirit of Azar merged with her however, she was provided with the ability to mystically shield herself and others from limited supernatural attack.