Benevolent Strike

The next time you hit a creature with a weapon attack before this spell ends, the weapon glows with astral radiance as you strike. The attack deals an extra 1d6 radiant damage to the target. Upon a hit, the radiant energy is unleashed and all creatures of your choice within 10 feet of you regain hit points equal to the radiant damage dealt. 

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level.