Concussive Blast

A spear of force is blasted in the direction of your spell focus, dealing 1d6 force damage upon a successful ranged spell attack. For every spell slot level above first, another 1d6 force damage is dealt.

If any creatures are standing within a 5 foot radius of the point of impact, they must make a strength save against the caster's spell DC. If the creatures fail the saving throw, they are launched away from the point of impact a number of feet equal to the spell slot's level x 10, as well as knocking them prone upon landing. 

Alternatively the caster may cast the spell around them self, or at their feet as to be launched into the air.