Icelandic magickal stave on door and on inside of walls.
Injustice: Gods Among Us Year 3 (Issue #2)
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Update #1 from graycloak:
“That’s a Lásabrjótur, an Icelandic magickal stave used “to open a lock without a key.” The second panel looks to be the same, but using some artistic licence to show an “opened” state.”
Ægishjálmr, the Helm of Awe (or what I suspect is Ægishjálmr based on what I can see) on a door.
Injustice: Gods Among Us Year 3 (Issue #2)
Sigil and ritual Constantine used to contact Trigon in hell.
Injustice: Gods Among Us Year 3 (Issue #2)
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Update #1 from hoary-hosts-of-hogwarts:
“
The big S in the center is called the Mark of Skaath, according to the Teen Titans cartoon.
“
Papa Midnite summoning Anansi.
Hellblazer Special – Papa Midnite #5
An Akan symbol – the Sankofa: You must look to the past to understand your future.
Hellblazer Special – Papa Midnite #1
Hellblazer Special – Chas: The Knowledge #5
Hellblazer Special – Chas: The Knowledge #5
Sigil to ward off? a Peckerwood demon.
Hellblazer Special – Chas: The Knowledge #1
Constantine 1×13: Waiting for The Man
Mark/brand of The Devil’s Branding Iron – Diaboli Cauter.
The word of binding that would seal the demons back into Pandora’s Box.
Hellblazer Special: Lady Constantine #4
John Constantine's Spells 