Augment Weapon (HB)

You augment a weapon that you can touch with random temporary magic damage in addition to its other effects including if its already a magic item. Whether its magical or not for the spells duration it becomes a magic item. Roll a d12 the weapon gains an additional 1d6 damage depending on the roll using the chart below.

D12 Random Temporary Damage 

At Higher Levels. When you cast this spell using a spell slot of 5th or 6th level, the bonus extra damage increases to 2d6. When you use a spell slot of 7th level or higher, the bonus extra damage increases to 3d6.