This is some fun theorizing.
So I know the books have basically set it up where River Shoulders is probably going to start training Dresden, but an idea occurred to me that I wonder if Harry could do.
Could he ask Uriel to train him in magic to counter the training Marcone got? Uriel can only act to balance the scales to what the Denarians have done...well, one of them has trained someone in the magical arts. Seems only fair, if the human is willing, that Uriel can act in the same fashion, no?