Darmoth's Radiance

You gain this spell on a roll of 47 or 97 on the Forbidden Spells Table.

For as long as you maintain concentration up to an hour you emit a brilliant light that shines to 60 feet and produces dim light to 120 feet.  Creatures you choose as the spell is cast are not hindered by this spell.  Creatures you designate as foe as the spell is cast take 2d12 radiant damage on any turn they start within the light's radius or when the enter the light for the first time on their turn.  Creatures that were given no designation as it was cast have disadvantage on all checks and saves that require vision.