Brynns Radiant cloak

A cloak of radiant light wreathes your body until the spell ends, causing you to become heavily obscured to others. The cloak emits bright light in a 30 foot radius and dim light an additional 30 feet.

Whenever a creature enters within 10 feet of you or starts it's turn in that area it takes 2d8 radiant damage and must make a CON save or be blinded until the end of its turn.