Unrelenting Force

You shoot a concentrated wave of force energy at a creature, which not only damages them, but also briefly disorients them.

Effects:
Force Attack: Choose a creature within range. It must make a Strength saving throw. On a failed saving throw, it takes 3D8 force damage and is knocked off balance, giving it disadvantage on the next attack it makes before the start of your next turn.
On a successful saving throw, the creature takes half the damage and suffers no further effect.

At higher levels: for each spell level you go up, you can attack 1 extra person