Break down the walls

This enchantment can be applied to any inanimate object, not just weapons. If cast at the 4th level, it can be cast on an animate object, undead, or living being for the same effect. For every level above 1st cast on objects, the duration increases by 2 hours. For every level cast above 4th on an animate object, undead, or living being increases the duration by 3 hours. The spell grants the target the siege quality, or double damage against objects and structures.