Doom Prophecy

You utter forth a dooming prophecy for one creature within range. After the prophecy is made, the target must make a Wisdom saving throw after 1d4 rounds at the start of their turn. On a failed save, the target takes 8d8 psychic damage, or half as much damage on a successful one. The target does not have to remain within the spell's range to take this damage.

At Higher Level. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for each slot level above 4th.