Cancels out their mojo. James purses out his lips, thinking. It did indeed sound like a good thing. The ability to cancel out a witch's powers, render them helpless, if only for a few minutes. He doesn't know why, but he also thinks that may be dangerous in the wrong hands.

"Who was this witch that brought up the idea?" he asks, not altogether suspicious, but cautious maybe. "Did they just bring up this idea outta the kindness of their hearts? Knowing we'd use it on their own kind?"