Since Francescu tends to get into discussions about sorcery with people, this is where I'm gonna try to make some kind of sense out of the way his magic works, armed only with my online dictionary and a moderate-to-extensive experience with the thought processes of his author. And a profound capacity for bullshit.
Since my canon is...well, obscure would be putting it mildly, I suppose, it's time for Happy Fun Writeup. (This is mostly focused on what Francescu can do rather than backstory and personality.)