Celestial Mantle

Until the spell ends, you sprout glowing wings that shed celestial power, shedding bright light in a 30-foot radius and dim light for an additional 30 feet for the spell’s duration. This light is sunlight. Until the spell ends you gain the following benefits:

• You are immune to radiant damage and have resistance to necrotic damage. 
• You gain a flying speed of 60 feet. If you are still flying when the spell ends, you fall, unless you can somehow prevent it.
• You can use your action to create a 20-foot-radius sphere of searing light centered on a point you can see within 60 feet of you. Each creature in that area must make a Constitution saving throw. A creature takes 4d6 radiant damage on a failed save, or half as much damage on a successful one. A creature that fails its saving throw has disadvantage on attack rolls relying on sight until the start of your next turn.