Timeline Detonation

School: Chronomancy (Evocation)
(Intended for use with a Chronomancer subclass such as the School of Temporal Magic)

A blueish-grey streak flashes from your pointing finger to a point you choose within range and then ruptures with a loud tearing sound into an eruption of swirling mist-smoke. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 8d6 force damage on a failed save, or half as much damage on a successful one.

The effect spreads around corners. It decomposes any non-living, organic objects in the area that aren't being worn or carried.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.