My point was that a lot of animals don't fall in the black and white spectrum of prey and preditor. There are scavengers and omnivores that don't fit perfectly into one spot on the food chain.

A better example would have been bees. A horrifying thought, but still a better example.

And yeah, nature would have to find a new balance, but the whole premise is basically "because magic" so there has to be a little bit of suspension of disbelief.

As for the whole concept, are the former apex predators part of this transformation or is the transformation limited to the former prey? Does Xarahotaz have some kind of rival and what would be their response?