Otto's irresistible dance

Otto's irresistible dance was an enchantment spell that forced the subject to dance. It was presumably developed by Otto.

To Zakharan mages, always reluctant to acknowledge ajami names and accomplishments, the spell was known simply as irresistible dance, and counted among the spells of the universal province.

Effect
The victim experienced an irresistable compulsion to dance, including shuffling and tapping their feet, capering and prancing. Naturally, they were completely unable to do anything else, even defend or protect themselves.