Duskknife

You manifest and throw a blade of shadow at a creature or an object within range. Make a ranged spell attack against the target. On a hit, the target takes 1d8 Necrotic damage. If cast whilst in low light or darkness, you gain a +2 bonus to the attack roll.

Cantrip Upgrade. The damage increases by 1d8 when you reach levels 5 (2d10), 11 (3d10), and 17 (4d10).