Birch's Blackhole

A bright purple beam flashes from you to a point you choose within range creating a dark ball and collapsing. Each creature in a 20-foot-radius Sphere centered on that point makes a Dexterity saving throw, taking 5d4 Force damage on a failed save or half as much damage on a successful one. Creature's who failed their saves are pulled towards the points center and knocked prone.

Using a Higher-Level Spell Slot. The damage increases by 1d4 for each spell slot level above 3.