Brick

You summon and fling a stone brick at a creature or object within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 non-magical bludgeoning damage. On a crit, the target must also succeed a Constitution saving throw against your spell save DC or become stunned until the end of its next turn.

You throw an additional brick at 5th level, 11th level, and 17th level. Each brick must be rolled separately. You can choose to throw extra bricks at other targets instead of concentrating them all on one target.