Umbra

You send forth a blast of shadow tendrils at a creature or object in range. Make a ranged spell attack against the target. On a hit, the target takes 1d6 necrotic damage. If the target is in dim light or darkness, the target takes 1d10 necrotic damage instead. An object creating natural light is snuffed out or an item creating magical light is deactivated until the end of your next turn.

The spell’s damage increases by one die when you reach 5th level (2d6 or 2d10), 11th level (3d6 or 3d10), and 17th level (4d6 or 4d10).