Angel Banishing Sigil
The Angel Banishing Sigil must be drawn in blood. It temporarily banishes angels (except the one who drew it) from that location. However, in 5.18 Point of No Return, Castiel banishes four angels and himself with a sigil on his chest. It has not yet been explained where angels are banished to after the sigil is used.
See Enochian for sigils that will prevent an angel entering a building.
Contents
Appearances
4.10 Heaven And Hell
When Sam and Dean join Ruby who has hidden Anna Milton from Alastair, Castiel and Uriel appear and proclaim they must kill Anna. As the angels attack, Anna cuts herself and draws the sigil, sending the angels away.
4.20 The Rapture
After Castiel found out about Zachariah's true plan he wanted to warn Dean and Sam, but he was ambushed by some of his superiors. Castiel engaged in an angel on angel battle with some of his superiors.
After this angelic battle, Castiel was taken up to Heaven for re-education on angelic obedience. Sam and Dean find the sigil in the place where they were to meet Cas; he presumably used it to try and fight off his captors.
4.22 Lucifer Rising
Castiel uses the sigil to banish Zachariah after he decides to help Dean get to Sam, in hopes of preventing Sam from killing Lilith.
5.01 Sympathy For The Devil
Dean uses the sigil, which was all ready and hidden at Chuck's place, to banish Zachariah along with two more angels.
5.13 The Song Remains The Same
Sam uses a sigil to banish Anna during their first confrontation in 1978. Later, Dean shows John how to make the sigil, but when Anna and Uriel arrive, they somehow defuse the sigil.
5.18 Point of No Return
Dean uses a sigil to banish Castiel to escape from Bobby's Panic Room. Later, while fighting four angels in the abandoned muffler factory, Castiel takes off his shirt to reveal the sigil carved into his chest with a box cutter. He puts his hand on it and banishes the other angels and himself, giving Sam and Dean an opening to go to the Green Room.
6.03 The Third Man
Outside of Balthazar's house, Dean and Sam are confronted by a hostile angel. He is a soldier of Raphael and, rather than fight him with the Angel Killing Swords they have in their possession, Dean banishes him with a Sigil etched on a wall of Balthazar's house.
6.10 Caged Heat
Samuel draws a modified version of the sigil and activates it, banishing Castiel temporarily.
