Mordenkainen's Lost Notebook

Nystul’s Flash

1-level Evocation

You cause a sudden burst of bright light to fill a 10-foot radius sphere within range. Each creature within the area that uses eyes for sight must make a Constitution saving throw or be blinded until the end of their next turn.
At higher levels: At higher levels: When you cast this spell using a spell slot of 2nd level or higher, the radius of the sphere increases by 5 feet for each slot level above 1st.