Wave of Conviction

You unleash a pure beam of divine energy at a target within 60 feet of you. The target must make a Dexterity saving throw. A target hit by the wave takes 2d10 radiant damage. If the target was wearing armor made out of metal, the armor is then irradiated on a failed save and the target is weak to radiant damage untill the start of your next turn. (If the target is resistant to radiant damage, it then becomes neither resistant or weak to radiant damage)

At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d10 for each slot level above 1st.