Calamity Mod Wiki
Rune of Kos
  • Rune of Kos.png
Stack digit 1.png
Use time45 Very Slow
TooltipA 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
RarityRarity Level: 12
SellNo value
Dropped by
Providence, the Profaned Goddess1100%

The Rune of Kos is a craftable post-Moon Lord non-consumable summoning item that is also dropped by Providence, the Profaned Goddess. It is used to summon the Sentinels of the Devourer bosses at various locations in the world. Each location summons a different sentinel.



Crafting Station
Ancient ManipulatorAncient Manipulator
Unholy EssenceUnholy Essence40
Luminite BarLuminite Bar3
Solar FragmentSolar Fragment5
Rune of KosRune of Kos1


  • 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 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.