Ark:Shield Generator

The Artificers of Avaris designed the Arcsis system to aid Arcanists in and out of battles. One of the components of this system is the Shield Generator.

The shield generator can be carried or placed down on a solid surface. As a bonus action, you can expend a charge of this device, emitting a translucent barrier in a 10-foot radius that can protect up to three creatures at a time. The device can be powered for up to 10 minutes. Arc:Gear devices can only recover expended charges using a power relay station. You must be attuned to an Arkstar to use this Arc:Gear

You gain a +1 bonus to AC. 

Notes: Bonus: Armor Class, creature or by an Arkstar