Claws of the Earth Dragon

You summon the power of the earth dragon and shoot a ray at one target within 60 feet. The target falls prone and takes 6d8 bludgeoning damage from being slammed to the ground. If the target was flying or levitating, it takes an additional 1d6 bludgeoning damage per 10 feet it falls. If the target makes a successful Strength saving throw, damage is halved, it doesn’t fall, and it isn’t knocked prone.