Elemental bow

You summon a bow to your hand that shoots elemental arrows. You can choose its damage type every time you shoot, fire, cold, lightning, acid, force or poison. On hit the arrow deals an additional 1d4 of that damage type. 

At higher levels: You add 1d4 for each 2 levels upcasted, so at 3 rd, 5th, 7th and 9th, additionally the d4 becomes a d6 from 7th level and up.

Duration: 3 attacks or up to 1 minute