Thunder Missile

3 darts of thunderous force leaves your hand. Each dart hits a target of your choice that you can see that is range. Each dart hits with a mighty thunder dealing 1d4+1 force damage and target must make a con. save. On a failed save target takes 2d8 thunder damage and is pushed 10 feet  in any direction the caster chooses. On a successful save target takes half damage and is not pushed.