This bag is made from the stitched-together skin of the famed bottom-feeders of the Abyss. The bag contains three charges that will reset after a long rest.

As an action you can expend two charges to cast fly on yourself as the bag takes off gripped in one of your hands. 

As a Bonus Action (One Charge) you can pull out 1d4+1 Abyssal Chickens out of a hat. They have the swarm properties and are under your command, but once per turn you must make a Charisma check DC 10+ the number of chickens summoned. If you fail this check the abyssal creatures go wild and will attack anyone in their war path including you and your companions.