Bursting Boil

You attempt to boil the blood under the skin of a creature you try to touch and burst it. Make a melee spell attack against the target. On a hit, the target takes 1d10 fire damage and an adjacent creature of your choosing to the target must make a Dexterity saving throw against your Spell Save DC. On a failure, that creature becomes blinded until the start of their turn. 

At Higher Levels: The spell’s damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).