Corrupting Touch

Your touch corrodes a creature or object you try to touch. Make a melee spell attack against the target. On a hit, the target takes 1d4 acid damage and 1d4 necrotic damage.

The spell's damage increases by 1d4 of each type when you reach 5th level (2d4 each), 11th level (3d4 each), and 17th level (4d4 each).