Chedda's Telekinplosion

You choose a point within range and cause psychic energy to explode there. Each creature in a 20-foot-radius sphere centered on that point must make an Constitution saving throw. A target takes 5d6 force damage on a failed save, or half as much damage on a successful one.

After a failed save, a target is pushed either 10 feet away from or towards the center of the blast, if a target would collide with an object or creature during this it takes an additional d6 for each 5 ft travelled before the collision.