Blue Frost Arrow

You brandish the weapon used in the spell’s casting and make a ranged attack with it against one target creature. On a hit, the target suffers the weapon attack’s normal effects and then becomes covered in sharp hoar frost which melts at the start of your next turn. If the target takes a reaction before then, the target takes 1d8 cold damage as frosty shards shatter, and the spell ends.

This spell’s damage increases when you reach certain levels. At 5th level, the ranged attack deals an extra 1d8 cold damage to the target on a hit, and the damage the target takes for taking a reaction increases to 2d8. Both damage rolls increase by 1d8 at 11th level (2d8 and 3d8) and again at 17th level (3d8 and 4d8).