Trebuchet

Choose one object weighing 1 to 1,000 pounds within range that isn’t being worn or carried. The object flies in a straight line up to 100 feet long and 10 feet wide in a direction you choose before falling to the ground. Each creature in the line must make a Dexterity saving throw. A creature takes 5d12 bludgeoning damage on a failed save, or half as much damage on a successful one

At higher level. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d12, for each slot level above 5th.