Decay

Make a melee spell attack against a creature you touch. On a hit, the target takes 1d10 necrotic damage. If the target is a Tiny or Small nonmagical object that isn’t being worn or carried by a creature, it automatically takes maximum damage from the spell.

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