Telekinetic Crush

Unlike other spells, this spell has a prerequisite spell. To cast this spell you must already have a telekinetic grip on a creature using the 5th level spell telekinesis. When you cast this spell you attempt to crush a creature using your mind. The creature must make a strength saving throw against your spell save DC. On a fail they take 5D10 force damage. On a success they receive no damage and you lose your telekinetic grip on the creature you had with telekinesis. 

At higher levels the damage increases by 1D10 per level above level one.