+1 Shield
When you were this shield on your back, you can unfold it as a metallic pair of wings as a bonus action.
You gain a flying speed of 60 ft for a duration of maximum 1 hour, or until you give back it's shield form as a bonus action.
you have a wingspan of 15 ft and need that much space to be able to fly.
1 activation of this ability, uses 1 minute of your flighttime. you gain back 10 minutes for every hour the shield spends in shield form.
When you use your shield as wings, you can't benefit from the shield's bonus to AC. You can, however, use your reaction to add +3 to your AC when you are hit by an attack.
You can choose to keep this bonus until the the beginning of your next turn, but you then loose your ability to fly and start falling if you are in the air.
A shield is made from wood or metal and is carried in one hand. Wielding a shield increases your Armor Class by 2. You can benefit from only one shield at a time.