Wow! A Talking Fish! (1983)
This is seven minutes long, but I promise you it’s well-worth watching. It’s an animated film from Armenia, in Russian with sub-titles, written, produced, animated and directed by Robert Saakyants. It’s based on an Armenian folk tale, and at about 1:30 a wizard appears — the animation of this shape-shifter makes this a classic. Check it out:
(Thanks, Thorsten Fleisch)