Theophilus of Adana's Contract Seal

Origin
Theophilus of Adana was a cleric in the sixth century Church who is said to have made a deal with the Devil to gain an ecclesiastical position. Theophilus regretted his rash action and fasted for seventy days until the contract reappeared, preventing his pardon. He took the contact to a bishop, who burned it and killed Theophilus, freeing him from his contract. His story is significant as it is the oldest story of a pact with the devil and was an inspiration for the Faust legend.

This artifact inspired the 1959 Twilight Zone episode "Escape Clause".

Effects
The user will become invulnerable to injury, especially fire, drowning, electrical shock and being run over. Many times, they will use their “miraculous” survival to gain some compensation, usually in the form of money or position. This need for more will take the user’s mind and corrupt it. Only those who are truly sorry for their actions will try to use the escape clause. If they burn the contract, their body will stop functioning and the user will die. Afterwards, the contract will reform itself out from the ashes, with the last user’s name now erased.