Dragoneye Rune

You create a draconic rune on an object or location, no smaller than 5 feet square. Any creature that comes in contact with the rune must make a dexterity saving throw or take 3d12 fire damage and be blinded for 1 hour. If the target succeeds on the saving throw they take half damage. 

At Higher Levels. When this spell is cast as a 3rd level or higher, the target takes an additional 1d12 damage and the fire damage goes an additional 5 feet.