Antimatter

You summon a ball of dark violet energy and hurl it at your enemies.

Select up to four creatures that are within 5 feet of each other. They each must make a Constitution saving throw. On a failed save, they take 3d8 necrotic damage. The ball also explodes in an area 30 feet wide. Any creature in the area takes 1d6 fire damage and is launched 50 feet into the air.

You can also fire the ball of antimatter at an object. When I it hits, it causes an explosion in an area 20 feet wide. Any creature in this area takes 2d6 fire damage. A crater of the same area appears where the ball exploded. It is 10 feet deep.