Dancing Feet

You cause a musical chord to play and creatures in the area have a sudden urge to dance. Fey and creatures that can’t be charmed are immune to this spell.

Affected creatures have their Speed reduced by half and disadvantage on attack rolls and saving throws for the duration. As an action on each of their turns, a creature may attempt to end the spell by making another saving throw (with disadvantage), ending the spell’s effects on a success. If the spell lasts the full duration, each creature under its influence when the spell ends suffers 1d4 levels of fatigue.

Any damage done to a target by you or an ally ends the spell for that creature.