Shapeshifting

Shapeshifting is the practice of magically altering one's physical appearance. It may be presented as voluntary or involuntary, by means of either a curse or intentional magical works.

Cryptids

Shapeshifting is a common theme among various cryptids, including:

• Fleshgait can mimic the appearances of others
• Skinwalker changes between human and animal forms
• Werewolf
• Therianthropy

External sources

• M.T.H.O.S. by William R. Wraithe purports to have knowledge of how to shapeshift.
• The Shifter's Bible is a successor to M.T.H.O.S. with techniques for instantaneous shapeshifting without long periods of programming one's "morphogenetic fields".