Countach’s Time Knife

You use your knowledge of space and time to cause the fabric of the multiverse to fold on itself like a blade which is then hurled at a creature that you can see within range. Alternatively, you can utter the creature’s name. If the named target is within range, it gains no benefit from cover or invisibility as the knife homes in on it. If the named target isn’t within range, the knife dissipates, and the spell slot is not expended.

The target must succeed on an Intelligence saving throw or take 10d6 psychic damage and be Stunned until the start of your next turn.

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