A relic of the profaned flame Contains the power hunted relentlessly by the sentinels of the cosmic devourer When used in certain areas of the world, it will unleash them Not consumable
The name of the item is a reference to the character Kos, from the video game Bloodborne.
The symbol inside the centre of the sprite is a reference to the Caryll Rune "Moon" from the same game.
Prior to the 1.3.3.001 update, this item could only be obtained as a drop from Providence, the Profaned Goddess, meaning that she had to be defeated before the player could access the Sentinels or The Devourer of Gods.