The Nome Counterattack
Princess Ozma has three weapons: a magic picture that shows her anything she wants to see, the Nome King's Magic Belt, and a magic fountain that completely erases the mind of the drinker.
Aired 27/07/1987EP 42 - The Nome Counterattack
1986
The Wonderful Wizard of Oz
Based on The Wonderful Wizard of Oz (1900), The Marvelous Land of Oz, Ozma of Oz, and The Emerald City of Oz (1900-1920) by L. Frank Baum (1856-1919).
(Source: AniDB)