When something sounds too good to be true, it is.
Think of it this way, if magic could make people transform into other things, don't you think more people would be doing it? I mean those with nefarious intentions would love that ability.
These questions come up more often than some of us would like. Especially transformation, mind control, and those things often seen in movies or tv or read about as 'magic'. The popular belief of what magic is has become rather far fetched. Though many here find their practice exciting and energizing, others would not. As my son to me after I did a blessing on the house, "Geesh Ma, that was duller than watching paint dry." I had an entirely different view of the experience. I was exhilarated, exhausted (yes, you can be both), and content with the work I had accomplished.
I would suggest you do some reading about what magic is and how it works. I say that a lot. I do believe it to be some good advice. There are many lists of books you can start with, you can find some lists in the forum, on profiles, and on the internet. I caution you, not every book touted as 'real magic' lives up to the claim.