I’ll be honest, I don’t know shit about demons. I hate everyone, and I don’t care what species. Like Goku, if I can’t do it myself, there’s no fucking point to it.
As for magical intent, you want to induce a fixation. In all the magical lore, the badass magicians are able to induce a fixation of their choosing. To the point where they can’t get your script out of their heads.
If you know a demon that embodies that intent, then use it. If not, make something up.