Blinding Radiance

As you hold your hands with thumbs interlocked and fingers spread, radiant energy shoots forth from your palms. Each creature in a 15-foot cone must make a Constitution saving throw. On a failure, a creature takes 3d8 radiant damage and is blinded until the end of your next turn. On a success, a creatures takes half as much damage and isn’t blinded.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.