The Dungeons and Dragons (DnD) chapter in Dead by Daylight introduced a notorious villain to terrorize the Survivors as they rolled dice and searched for treasure chests. Those chests might contain items belonging to Vecna.
The Lich "Eye of Vecna" Mori
The Eye of Vecna is one of the limited items that you can find in treasure chests scattered across the DnD map. However, you can only get an Eye of Vecna if you roll a 20 on the dice roll after opening the treasure chest, which is not easy and depends on your luck.
This is an existing artifact in DnD lore alongside the Hand of Vecna, but to activate it you must tear out your own eye and replace it with Vecna's, turning it golden. In Dead by Daylight, the Survivor will do just that when attuned to it, and will hear Vecna's voice warning him that the eye is not his.
Once you get your hands on the Eye of Vecna, or rather, you get the Eye of Vecna in your face, you will lose one Health State, but you will notice that the nearest Locker is yellow. If you go in and quickly run out, you will activate the Eye for 12 seconds. Here is what the Eye of Vecna does: