Time Bomb

A bright streak of light flashes from your pointing finger to a point you choose within range then blossoms with a low roar into an explosion of pure time. Each creature within a 20 foot radius must make a Dexterity saving throw. A target takes 8d6 time damage on a failed save, and half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, the damage increases by 1d6 for each slot level above 7th.