I keep seeing people looking to trade for them, but I don't even know what they are?
It's a Scroll that can turn your wolf into Bracchus. I believe available from kickstarter.
@scribblecrumb
Bracchus is a Kickstarter exclusive breed, meaning the breed change items are likely not going to be available ever again. So, if you want to change your starting wolves into a Bracchus breed, it's the only way to do so!