Cannon Of Haima

You lob an explosive magic projectile that flies in an arc towards a point within range. Every creature within a 15-foot radius sphere centered on that point must make a Dexterity saving throw. A target takes 7d6 force damage on a failed save, of half as much damage on a successful one.
The projectile can be thrown over obstacles with a heightof 15 feet or less, reaching a point behind it.
At Higher Levels.
When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.