Vorli’s Cloud of Quills

Magical quills fill a 5ft square space you can see within range. 

Each creature that passes through this space must make a dexterity saving throw. On a failed saving throw, they take 2D4 piercing damage, or half as much on a success. The space is treated as difficult terrain.

This effect lasts up to one minute or until you lose concentration or you dismiss the spell voluntarily. The spell will also be lost if you fall unconscious or die.