What does CoS mean in World of Warcraft? CoS WoW Term Definition

The term CoS in World of Warcraft can stand for one of two things. The most common meaning is the Culling of Stratholme, a high level instance in the Caverns of Time in Tanaris. CoS can stand for Cloak of Shadows, a Rogue ability that removes magic effects and renders the Rogue virtually invincible to magic for a short time. The CoS WoW term is pretty well-known, especially by players with Rogues or level 80 characters.