Midnight Locket

Requires attunement
The Midnight Locket can be used to trap demons.
The wearer can cast the darkness spell once per long rest.
While wearing this Locket you can read/write and
speak Abyssal.
The obsidian in the center of the locket will not reflect any light when a fiend is within 100 feet
of the wearer.
"This will protect you from the sons
of Tarakamedes." -Augustinus, Kleriker