Tamat Arrow

You draw the string of your bow and unleash a volley of 6 arrows that float around you. Whenever you deal damage with a spell that requires an attack roll or saving throw, you can send 1 arrow to each creature affected by the spell. Alternatively whenever you hit an attack, you can send 1 arrow to the target. Each arrow deals 1d10 force damage. 

When you cast this spell using a spell slot of 4th level, you gain 1 additional arrow for every level above 3rd.