Darkshot

You evoke a bow of shadows in your free hand. The bow is similar in size and shape to a longbow, and it lasts for the duration. If you let go of the bow, it disappears, but you can evoke it again as a Bonus Action.

As a Magic action, you can conjure an arrow of darkness and make a ranged spell attack with the bow. On a hit, the target takes Psychic damage equal to 4d8 plus your spellcasting ability modifier. The bow scores a Critical Hit on a roll of 19 or 20 on the D20 against a creature in Dim Light or Darkness.

Using a Higher-Level Spell Slot. The damage increases by 1d8 for each spell slot level above 4.