Shining Smite

Level 2 Transmutation (Paladin)
Casting Time: Template:Casting Time Bonus Action, which you take immediately after hitting a creature with a Melee weapon or an Unarmed Strike
Range: Self
Components:
Duration: Concentration, up to 1 minute

The target hit by the strike takes an extra 2d6 Radiant damage from the attack. Until the spell ends, the target sheds Bright Light in a 5-foot radius, attack rolls against it have Advantage, and it can't benefit from the Invisible condition.

Using a Higher-Level Spell Slot. The damage increases by 1d6 for each spell slot level above 2.