Firstly, how the heck can he grant you a grade? This is just silly supersition. To prove it false, I have an History exam in the 12th of June. And I need to get a C grade in Maths. I ask that you bring me those grades. If that doesn't happen, then this is a false thing in which you are being misled too. And my grade for the English one should be a A*.
Of course, this will never happen as he can't actually grant or give you the gifts of your grades. It is just nothing. Being Misled, you will have to work hard. Nothing like that comes so easy.