Hardness*

This spell imbues the touched item or construct with one point of Hardness for every two levels of the caster. The item may not be larger than 10 cubic feet plus 1 cubic foot per level of the caster. The reverse form (weaken) subtracts as many points of Hardness. If the target item is reduced below 0 Hardness, excess negative Hardness is inflicted as damage points.