Assassin's Seal

Reduces enemy Awareness Range by 25%. Increases all damage dealt to enemies not targeting wearer by 10%.

Find on the ledge behind the throne of The One True King in the Council Chamber dungeon on Losomn.

Lore

It is unclear how much of this ring retains its original color and how much has become stained with age. Or perhaps the ambiguity is intentional, making it different things to different people.

"It is said, truly, that no weapon forged or wielded by the Fae can kill the One True king. What the imposter realized, however, is that one does not need to kill a king in order to depose him."