Undrave
Legend
And as I prefer it. I've always found nonsensical that the forces of the good aligned planes are portrayed as unable to beat the evil forces for no apparent reason. That's one of the reasons I dislike Planescape and it's Great Wheel.
The 4e Astral Plane had more interesting and nuanced politics. Sometimes, gods align on different issues in ways other than pure alignment.
I also believe that, in 4e, the gods trapped Asmodeus in his domain as punishment for killing his original god.