Motelight (Flask)

When you take the Attack action, you can replace one of your attacks with throwing a flask of Motelight. Target one creature or object you can see within 20 feet of yourself. The target must succeed on a Dexterity saving throw (DC 8 plus your Dexterity modifier and Proficiency Bonus) or become surrounded by rapidly moving, harmless sparks that follow it until the start of your next turn. If the creature attempts to take the Magic action, it must succeed on a Concentration check before doing so. If it fails, the action has no effect and the Spell Slot or use of the action is expended.