Eroding Touch

Your hand glows faintly with necrotic energy. Objects you touch decay and erode to pieces. Stone crumbles, glass cracks, and metal rusts. You can erode away up to 1 square foot of stone, wood, or other common material, or 1 square inch of common metals such as iron, steel, or lead.

This spell cannot be used to affect the living or undead, magical items, or a creation of magical force, such as the wall created by wall of force.