Photon

this spell when cast appears as a shining glyph on the enemy, then instantly streaks of light clustering together around the rune and then exploding on a single target. Make a spell attack roll and if it hits, the targeted creature takes 6d4 Radiant and has to make a constitution save or be blinded until your next turn.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d4 for each slot level above 2nd