Dance of Exhaustion

When a bard plays the tune of the Dance of Exhaustion, select one creature within range. The target dances vigorously for one round. At the end of that round, the target must make a CON saving throw. On a failed save, the target gains three levels of exhaustion and on a success gains one level of exhaustion.

The Dance of Exhaustion can be cast multiple times if the caster has the spell slots.  The effects of the exhaustion are cumulative.  Finishing a long rest reduces the creature's exhaustion level by 1, provided that the creature has also ingested some food and drink.

A humanoid killed by this spell rises at the start of your next turn as a zombie that continues to dance and cannot attack.