What, this list totally doesn’t have anything to do with the fact that I was thinking about the whiteboard in Cabin in the Woods. And also, this is based on Wikipedia’s classifications. With very little elaboration, but they speak for themselves.
5. ___ spirits
You know. Forest spirits, lightning spirits, cloud spirits, whatever. I wanna see some pissed-off spirits up in here.
4. Elementals
These guys are kind of like angels, but with butterfly wings, and they “[embody] one of the five elements of antiquity.” Do this however you want, but I’d be into it, maybe.
3. Actually, I just want a horror movie about mythological deities.
ALL the mythological deities. From every canon.
2. Unicorns
Yeah, I’m going there. But I want some pissed-off unicorns, too. The really angry kind that gore people. There should be more of that in things. There should just be more unicorns. There should be a horror movie about an angry unicorn.
1. Merpeople
Like I said. I also would like to see some angry merpeople in a thing. We’ve had Piranha and Jaws and things about angry actual fish, why not angry fish-people?
–your fangirl heroine.

Furies of Calderon. I read the first one, and am waiting for the funds to be able to read the rest. But it has Furies that are somewhat similar to a mix of elementals and spirits.
I would love to see a story about an evil woods spirit. There are several real ghost stories set in woods where ghosts appear to travelers. Both Dean Koontz & Stephen King have wrote short stories about these kinds of ghosts. And what about the suicide forest of Japan. You can’t tell me there are not evil sad spirits lurking there… And remember back to your childhood & how scared you could get alone in the woods at night…
it could possibly please you to know that my halloween costume for 2011 was a unicorn drenched in blood (presumably after a vicious battle).