Thanks for answering... (xp not working again) I got a different reply on Reddit that helped me see the other point of view, though. You can look at it like this: Wild Shape lets you change from a human to an animal and back. Not from an animal to an animal and back. You might ask, what happens when you wild shape into a wolf, then a hippo, and your first wild shape expires? Shouldn't you turn back into a human? I'm not sure stacking wild shapes is okay now.