Optional Challenge
My challenge was that the main character had to be a witch. They, uh, look like a witch I guess, so that makes them a witch? Hopefully that's enough. My discord handle is @turtlehat#3667 btw :)

Sacrifice - How did you use the theme?
Okay so I didn't actually get around to implementing it obviously but I was gonna make a Sokoban-style game so you'd be able to sacrifice directions you can move in, turning them into spirits that could only move in one direction, but can pass through walls. For instance, you could create a spirit that can move to the left, but prevents you from moving in the opposite direction, to the right. I don't know if that counts because I didn't add it yet, so if you need something that's actually there, I had to "sacrifice" progress on this project in order to finish an essay on time :)