Magnetic Shield

Copper rings spiral around this . Twin electrical probes near the grip can socket into a jar of moderate (or higher leveled) Bottled Lightning, which takes 3 Interact actions to install.

Activate 1 (manipulate)

Requirements A bottled lightning is installed in the shield

Effect The shield becomes an electromagnet for 3 rounds. When an activated magnetic shield is raised, the circumstance bonus increases by 1 against attacks made with weapons primarily made of metal. If you use a against a creature attacking you with such a weapon, you also gain a +1 item bonus to attempts against that weapon until the end of your next turn. The activation uses up the bottled lightning, and the shield can't be activated again until a new one is installed.