Chronoblast

A creature you can see within range must make an Intelligence saving throw. On a success, they take 4d6 psychic damage. On a failure, they instead stunned until the end of their next turn, at which point they take the 4d6 psychic damage.

At Higher Levels: When you cast this spell using a spell slot of 5th level or higher, increase the damage by 1d6 for each level above 4th level.

Idea from @regulusrpg on Instagram!!