Prometheus' Chain

Once bounded to a rock for giving humanity fire, Prometheus was chained by a magical chain that was handcrafted by Hephaestus and powered by Zeus' hatred.

Origin
Though the mythology is true to the written account, most of details were not kept in the myth entirely. The myth leading up to Prometheus' punishment, is correct, but the details concerning the imprisonment is left in the dark.

Before sentencing the punishment, Zeus ordered Hephaestus to construct something to hold Prometheus for all eternity. Aimed at this task, Hephaestus started work on the chain as soon as he was given the word, created through the fire that Prometheus gave to humanitly and the metal, clay and stone that Pandora was created from. After creating the chain, it was quickly put to use and bound Prometheus to the rock, as it was made in the fire, it was strong enough to hold Prometheus forever (Or at least a few miliina). Though the chain was made to last forever, the chain was worn by the tugging and pulling from the eagle that fed on his liver, for it rested on his side where his liver was located at.

When Hercales had made it to Prometheus, it was already worn down from repeated tugging by the eagle, it had become weak enough for Hercales to break it.

One piece, survived the breaking of the chain, the end piece of the chain was not worn down and was casted down to the mortals. Eventually ending up in the Warehouse.

Effects
Powered by the hatred of Zeus and the defying nature of Prometheus, this artifact has the power to free people or objects from physical harm. Instantly breaking the restraints.

Linking the chain around a person for an extended period of time, causes the victims liver to grow exponentially.