Second Filter
To turn Jadis Tranquil, you mean? She has no connection to the Fade, I don't believe, so it could have unpredictable results.
But it also might do the same to her, cut her off from her magic source.
But at that point, I would much rather put her to death. I feel like Tranquility is worse than that, at times. Not only does it cut you off from the Fade and magic, but it removes all personality, the emotional center of a person is gone.