Dark Combustion

This spell surrounds the target in dark matter, the matter begins to collide, the matter then explodes then implodes. On a hit, the target takes 3d12 necrotic damage on a failed save, or half as much damage on a successful one. The dark matter seeps under doors or within cracks and seems of walls, so there is no escape if the target is within range of the spell.

The spells damage increases by 2d12 when you reach 5th level (2d12), 11th level (4d12), and 17th level (6d12).