[Kameron8]

Making Whispering Cant main class only is the easiest solution, and the one I see Dev favoring for simplicity's sake if he agrees with the points made.

However, I personally support making the passive only apply to offensive mage skills, and not any of the 10 enchants, Blink, or Swap Position. Complete freedom regardless of Silence, Immobilize, Freeze, Restrain, etc, is too forgiving. It should be at least possible to pin down a mage, given enough resources are committed to the cause -- it is certainly possible to do so for every other class in the game.