Well, technically, Wax is an Animagus. He can turn into any animal as long as he has contact with its skin, feather, or fur, etc.
That’s why he wears fur lined underwear. Patchwork fur made from hare, wolf, and rat. With some eagle and hummingbird feathers sewn in for variety. And there’s no stronger hair to sew it all up with than that from a unicorn’s mane (now extinct, of course).
Wax is very very old, and the reason Celadore is now a monster hunter. But that’s a story for another day. For now, here’s a story for this day… In all its pencil glory once again.