THE VOID

You create a bubble of darkness of the void at a point within range, where it explodes in a 5-foot-radius Sphere. Each creature in that Sphere must succeed on a Dexterity saving throw or take 157d20 acid damage. Any enemies that are humanoids that are dropped beneath 25 hit points by this spell turn into a nothic that serve the caster

Cantrip Upgrade. The damage increases when you reach levels 10 (213d20), 15 (398d20), and 22(675d20).