Medusa is a mythical creature with the powers to become a shape-shifter.
Shape-shifter is a mythological creature that can change shape at will or in certain conditions.
An example of a shape-shifter is Eustace Scrubb in "The Chronicles of Narnia" who transforms into a dragon.
Folklore a creature or thing that can change shape at will or that does so under certain conditions
- (fantasy, mythology) A creature capable of changing its appearance or form at will
- (mythology, science fiction, fantasy) a person or other being capable of changing their physical form