Boysenberry's Lucent Singularity

Alright Kids, playtime is over. When you cast this spell you fire up an orb made up of spinning streaks of light at any space within range. It passes through creatures and objects before reaching the space and then detonates into a brilliant display of blinding radiant light. Any creature within 5ft of the designated space takes 4d10 radiant damage and any creature within 10ft of the flash must make a constitution saving throw or become blinded until the end of your next turn. A creature who cannot see still takes the radiant damage but cannot be blinded. The magic of the spell lingers after it is cast, illuminating the spells range of 10ft from its original target with dim light until the start of your next turn.