Colour Spray

Casting Time: 1 action, Range: Self (15-foot cone)
Duration: 1 Round
A dazzling array of flashing, colored light springs from your hand. Roll 6d10; the total is how many hit points of creatures this spell can affect. Starting with the lowest current hit points, each creature affected is blinded until the spell ends. Casting this spell using a spell slot of 2nd level or higher, roll an additional 2d10 for each slot.