Empowering light

Select 1 target within 30 feet that is wielding a weapon or spell focus. The next hit from the weapon or spell attack made with the focus/material will deal a bonus 1d4 radiant damage. Once the target hits the spell ends.   

This spell cannot target unarmed strikes or natural weapons. If the target casts a spell that doesn't require material or isn't cast with a spell focus they do not gain the bonus Damage.  Additionally any saving throw damage caused delt by the target doesn't gain the added damage.  

This spell's damage increases by 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (5d4).