Benji's Metal Mosh Pit

You conjure an ethereal chained fence around an area, as a surge of aggressive music begins to take a hold of your foes. Each creature within a 20-foot-radius centered on a point that you can see within range that can hear the music must succeed a Wisdom saving throw or charmed and be forced to drop what weapons they are holding. On a charmed creature's turn they are compelled to charge towards the nearest creature they can see and make as many unarmed strikes against the target as they can, dealing 3d6 force damage to the target on a hit.

At the end of each of their turns creatures that are charmed by the spells effect can repeat the saving throw, however for each subsequent turn they are charmed, targets of the spell have an accumulating -1 to their saving throws due to the rhythm of the music compelling them to keep going.

At Higher levels. When you cast this spell using a spell slot 6th level of or higher, the radius of the spells effect increases by 5-feet-radius and the damage increases by 1d6 for every two slot levels above 4th.