In the place I'm from, it's... some rather specific steps, with the appropriate power, to do what you have in mind. It's all rather complicated, I'm afraid. I remember that I'm meant to have studied it for quite a long time, but not all the studies.
All I've got back so far are a few simple charms, more's the pity. And slime, but I don't imagine you'd much appreciate that terribly much.