Sigil to summon Trigon.
Injustice: Gods Among Us Year 3 (Issue #17)
Sigil to summon Trigon.
Injustice: Gods Among Us Year 3 (Issue #17)
The symbolic and literal ways tarot cards can be read.
Injustice: Gods Among Us Year 3 (Issues #6 and #4)
Sigil on door and on inside of walls.
Injustice: Gods Among Us Year 3 (Issue #2)
—
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.”

Sigil and ritual Constantine used to contact Trigon in hell.
Injustice: Gods Among Us Year 3 (Issue #2)
—
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.
“
Constantine’s tattoos.
Injustice: Gods Among Us Year 3 (Issue #4)
Icelandic magickal stave on door and on inside of walls.
Injustice: Gods Among Us Year 3 (Issue #2)
—
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)
—
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.
“

Sigils appearing on the Tower of Fate’s main door because John goes knocking.
Injustice: Gods Among Us Year 3 (Issue #1)