Soul of radiance

Your innate magic comes from the power of radiance. Most sorcerers with this power can trace the source of their magic from the influence of the upper planes, maybe blessed by a powerful celestial, or maybe just born with a bright soul with no reason whatsoever. Whatever the case, radiant light lingers within the soul, waiting for the time when the sorcerer channels the magic within. The magic possesed by a soul of radiance grants them the ability to shine light and use this light to fight.

Eyes of radiance

Starting at 1st level, you have darkvision with a range of 60 feet. You also learn the guiding bolt spell, which doesn't count against your number of sorcerer spells known. In addition, you can cast it by spending 1 sorcery point or by expending a spell slot. If you cast it with a sorcery point, you can make the target glow with dim light in a 20-foot radius.

Radiant retaliation

Starting at 1st level, you can use the light within you to retaliate whenever you are struck by an enemy. When you are hit by a melee attack, you can use your reaction to deal radiant damage to the attacker. The damage equals your Proficiency bonus.

Empowered cantrips

Starting at 6th level, you can add your Charisma modifier to the damage you deal with any sorcerer cantrip.

Blessings of the light

Starting at 14th level, you gain more familiarity with the radiance within your soul. You gain resistance to radiant damage. In addition, when you have to make a death saving throw at the start of your turn, you can channel the light within you to give you a burst of radiant energy. You regain hit points equal to half your hit point maximum. Once you use this feature, you can't use it again until you finish a long rest.

Blinding lights

Starting at 18th level, you gain immunity to radiant damage. You can also spend 7 sorcery points as a bonus action to magically shine with radiant light. While shining, you emit bright light in a 60-foot radius and dim light 30 feet beyond that. The first time any enemy creature enters the bright light or starts its turn there during a battle, the creature must succeed on a Constitution saving throw or become blinded for 1 minute. You remain shining for 1 minute. It ends early if you are incapacitated, if you die, or if you dismiss it as a bonus action.