Decaying Touch

Necrotic energy reaches out from your hand towards a creature you try to touch, causing it to crack and deteriorate. Make a melee spell attack against the target. On a hit, the target takes 1d10 necrotic damage.

The spell's damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).