Avenging Radiance Blade

You brandish the weapon used in the spell’s casting and make a melee attack with it against one creature within 5 feet of you. On a hit, the target suffers the weapon attack’s normal effects and then becomes wreathed in the flames of radiant judgement until the start of your next turn. If the target willingly attacks or deals damage to you before then, the target takes retributive radiant damage equal to your wisdom modifier, and the spell ends.

This spell’s damage increases when you reach certain levels. At 5th level, the melee attack deals an extra 1d8 radiant damage to the target on a hit, and the damage the target takes for attacking increases to 1d8+mod. Both damage rolls increase by 1d8 at 11th level (2d8 and 2d8+mod) and again at 17th level (3d8 and 3d8+mod).