Demon in the Dark
Ultra rare0.2%GrindOptionalSingle-player
Baba Yaga: Kill 10 enemies while wearing the Wraithskin outfit
The Wraithskin is the DLC's stealth outfit (unlocked partway through). Wear it and kill 10 enemies - comes naturally once you have it. See The Wraith of Siberia for the bigger version.
10 to collect