I'm running a Dungeon World adventure in a forested location, and my party had an encounter with some displacer beasts hunting down a blink dog.
An interjection: I was unaware blink dogs were actually a Dark Woods monster at the time. I was working off a deck of fantasy prompt cards and dealt out something that gave me the idea, so knowing that displacer beasts were probably not going to be an official Dungeon World thing because Copyright Reasons, I sketched out the whole "invasive shadow cat vs. fey tele-dog" thing from scratch, so the blink dogs in this example are more fey beasts than sorcerous creations.
After they fought off the beasts and tended to the dog's wounds, I had it blink away back to its lair, thinking I was just dropping a hint their good deeds would be rewarded later.
But then my Druid, Leafwillow*, asked me if blink dogs lived in the forest. I asked her where she was going with it and she said she wanted to turn into one.
She's an elf, so the Great Forest is always her Land; that's not the issue. The issue is that blink dogs are more than just "animals", aren't they? Because of the blinking? I asked her to let me think about it, and we wrapped for the night not long after.
Druids do have two moves that expand their repertoire:
- Thing-Talker lets them turn into natural inanimate objects, plants and rocks and such, as well as creatures made out of them
- World-Talker lets them turn into pure elements, as well as creatures made out of them
But neither of those categories really fits a blink dog, any more than "animal" does.
How do I decide whether Leafwillow should get to turn into a blink dog, or what she should have to do first? This really applies to the entire body of fantasy creatures that can be described as "animals with special powers and maybe a weird fur thing or ear or whatever". Like displacer beasts, come to think.
*the names have been changed to protect the innocent