Coin Shot

You flick a coin with magical force, turning it into a unstoppable ethereal projectile. The coin surges forward in line 60 feet long and 1 foot wide from you in a direction you choose. Each creature in the line must make a Dexterity saving throw. A creature takes 6d6 piercing damage on a failed save, or half as much damage on a successful one. The coin passes harmlessly through objects, ignoring cover.