This sigil, once drawn in human or angel blood and a hand pressed at its center, sends out a fierce light that banishes any angel(s) within the blast radius. This sigil does no harm to the angels, it merely sends them to a different location on earth, their vessels included. It also doesn't harm the vessels they occupy. This is, in a way, a weakness for the angels. Once the sigil is activated, the angel it is affecting, temporarily has its grace inactive, so that it is rendered mortal. As a result, it cannot fly back to where he or she was banished. They cannot stop it, once in use. It can be activated by both humans and angels (in human vessels); it does not banish the angel that activated it, unless the sigil was carved into his or her vessel's own flesh.
This sigil was first shown in Heaven and Hell when the angels come to take Anna Milton. She drew this symbol and banishes them for a while. In some of the symbol's later appearances, the sigil had less intricate designs, but were shown to be just as effective.
- Season Four
- Season Five
- Season Six
- Season Seven
- Season Nine
Once Sam and Dean gain this knowledge, they frequently use it to defend themselves against the Angels. So far they have used it at least once every season except season 8 since it was introduced.