With this longbow, all you have to do is speak its name, and it will appear in your hand once attuned to it. You also gain proficiency with longbows.

You have a +5 to attack and damage rolls made with this bow. And does an extra 3d10 force damage.

When using Windrunner, no arrows are required as the bow itself creates a kind of spectral arrow. The bow also grants you 60ft. of darkvision. 

Windrunner grants +1 to your AC as she guides you in battle, and you're immune to force damage while becoming vulnerable to psychic damage. You also get access to the true strike cantrip.

Windrunner has sentience and is of the chaotic good alignment. Windrunner can talk to you and your party telepathically regardless of whether or not she's in your hand.

Proficiency with a Longbow allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, Damage: Force, Sense: Darkvision, Immunity: Force, Vulnerability: Psychic, Bonus: Armor Class, Proficiency: Longbow, character with Dexterity 17 and Wisdom 15, Damage, Combat, Ammunition, Heavy, Range, Two-Handed, Slow