Zishe Breitbart’s Chain

Origin
Zishe Breitbart was a vaudeville strongman known for his feats of seemingly superhuman strength. These included bending iron bars, breaking horseshoes in half, holding horses back and having stones broken on his chest with sledgehammers. Another act included lifting a baby elephant while climbing a ladder, with rope in his mouth tied to a locomotive wheel with three men on the wheel. The chain is most likely from one of his acts of pulling a heavy weight, such as a car, with the chain in his mouth and him lying on his back.

Effects
The artifact is activated by pulling the chain with your mouth, the strength appearing suddenly. The person is able to do things usually requiring herculean strength without breaking a sweat. The downside is that longer used, the person suffers blood poisoning until they can no longer even lift up their arm.