Twilight Unicorn

You channel the energy of a celestial protector of fey and nature, calling forth the glittering apparition of an 8 foot Unicorn who's partly translucent body swirls with all the colors of a fey sunset. The Unicorn charges straight forward in a single direction of your choice for 40 feet, the affected area is 10 feet wide and all creatures within this area must make a dexterity saving throw.

On a failed save, the creature takes 4d6 bludgeoning and 6d6 radiant damage and is knocked prone, or half as much damage and is not knocked prone on a successful save.