化ける

ばけるbakeru

ichidan verb · intransitive

1. to take the form of (esp. in ref. to a spirit, fox, raccoon dog, etc.)
2. to assume the shape of
3. to turn oneself into
4. to transform oneself into
5. to disguise oneself (as)
6. to change (into)
7. to transform
8. to metamorphose

Study it in Yanamino