This AU owns my soul. Just this night I had a dream about Malala surrounded by a swarm of tiny demons (like, the size of a kitten) for some reason, and Dipper zapping them away and giving a lecture on different types of demons. I mean, wtf???
Also, headcanons (which may be confused with something I’ve read – I’m losing track of my own ideas and someone else’s posts. Sorry about that):
1. On summoning and binding circles: Why are you so perfect? I was thinking the exact same thing! I bet that Dipper’s family and friends use only the summoning circles without the binding part. Also I can imagine Cassie using the proper circles at first, but later she is using less and less protections, until finally she forgoes them completely. Dipper gets upset at it and gives her a lecture about how he is a terrible demon and could easily kill her and “really, Cassie, what were you thinking?!” And she just shoves the ice cream at him, like, “Yeah, yeah, heard this already, are we making a deal or what?”
OR maybe it was the other way around??? Maybe she didn’t even know about the necessary protections, so she didn’t use them at first, and only later, after at least several deals she began to study demonology, and found out how horribly wrong everything could have gone.
2. On the subject of deals. I get that for each deal there’s a lowest price that has to be paid. Dipper simply can’t take less, no matter how much he would want to. So what does that price depend on? My guess is, it depends on how hard it is for Dipper to uphold his end of the deal and how much energy he has to spend. Which means that as he becomes more powerful, he actually needs less payment. Of course, nothing prevents him from totally ripping off his summoners and taking more than necessary.
3. You said that Dipper doesn’t like entering other’s dreams, only Mabel’s because she will always accept him. What about her kids? I bet the triplets found out he could create anything in the dreamscape, and kept pestering him, until he agreed to their demands. After that he sometimes creates dreams for them, probably recreating some real but dangerous places he had been to. Like, did you know that underwater rivers exist? It’s certainly not something you can take a bunch of kids to, but I bet it’s awesome (the photos look really trippy, you can google them). Maybe Dipper spends some of his time just wandering the Earth and checking out some of the really awesome places. I know, if I could teleport, I totally would!
Ah, sorry about the long post. It kinda got away from me.