You begin a frenzied dance that compels others to join in. Choose any number of creatures you can see within range, and each makes a Charisma saving throw. Creatures that can't be charmed are immune to this spell.
On a failed save, each creature takes 5d8 psychic damage and begins to dance uncontrollably. At the start of each of its turns, an affected creature spends all of its movement to dance 10 feet in a random direction, and has disadvantage on attack rolls against both you and against other creatures affected by the spell. Roll a d8 for the direction: 1, north; 2, northeast; 3, east; 4, southeast; 5, south; 6, southwest; 7, west; or 8, northwest.
On a successful save, a creature takes half damage and isn't otherwise affected.
A creature that ends its turn outside the radius of the spell can make another Charisma saving throw. On a success, the spell ends for that creature.
"Spiders like to dance too sometimes, you know. I mean, I don't, but some do." -Apprentice Weaver Varuna
* - (a tiny tambourine)