This magic feather from an aarakocra gives you the ability to fly, just as its previous owner did. This feather has 1d6-1 charges. You can expend one charge as a bonus action to gain a flying speed equal to half your Dexterity score rounded to the nearest five until the end of your turn. If you are still in the air when this effect ends, you fall to the ground. In addition, you may expend two charges to cast the spell fly, without using verbal or material components. Once you expend the last charge, this item loses its magical properties until it is has spent at least a number of hours on the Elemental Plane of Air equal to your Dexterity modifier (minimum of one).