Quote Originally Posted by Skeppio View Post
Have him tortured by all nine Archdevils at once. Problem solved.
Character overflow.

Besides, each archdevil should be in the spotlight. They are amongst the most powerful things in creation. Bel is roughly equal to an intermediate deity, and he's the weakest. They are smart, brilliant, and powerful, and have personalities in danger of collapsing under the weight of themselves and forming a black hole.
Doing three is hard. Doing all nine? Tolkien could do it...