Armor (shield), rare (requires attunement)
This shield is a hand-carved wooden frame with a perfect, silver mirror set inside it. Despite being flat, the mirror refracts light as if it were curved, like a heater shield. While holding this shield, you have a +1 bonus to AC. This bonus is in addition to the shield's normal bonus to AC.
Reflect Light. Whenever you take radiant damage while holding the shield, you can use your reaction to halve the radiant damage you take. When you do, choose a target that you can see within 60 feet of you that can see you. That target must make a DC 15 Constitution saving throw or take damage equal to the amount of radiant damage you reduced. Roll a d4 and use the table below to determine the type of damage dealt and its additional effects; each result corresponds to a color of light that's reflected at the target.

Your belief in your own right to divinity is what will be your undoing. I will unmake your holy light, and I will show you the truth.