The Enochian Life-bound Warding Spell is a powerful warding spell that can be used to protect an object from supernatural interferences, even archangels.
The spell was developed by the Men of Letters and only taught to their elite "Black Ops" Division. According to Delphine Seydoux, the spell was highly classified, due to its nature.
Procedure
The user must draw an intricated Enochian sigil on a platform of the object and another in their chest, atop their heart. After the spell is cast, the whole object will be protected from the inside out.
Breaking
There are two known ways to break the spell. First, the user must be killed, and all the sigils on the object removed. Another way is by using the Spell of Gathering.