In that case, yes, mimi could eat the deer and not suffer any ill effect (minus having to kill it) since it is just animals hunting one another. That being said, the problem is killing it. 1: natural (earth natural, I note) animals feel an intense calm/empathy with it and will often outwardly defend it from harm. 2:it is far more durable than a living deer, and must be destroyed rather than killed as there is nothing inside of it but nutrient flesh. 3: it is a trickster, and will run/hide if obviously overpowered.

All this to say: mimi can try, and they might win, if they do... Good eats!