Calamity Mod Wiki
  • Cosmilamp.png
Stack digit 1.png
Damage130 Summon
Knockback4 (Weak)
Use time14 Very Fast
TooltipSummons a cosmic lantern to fight for you
Takes up 2 minion slots
Grants BuffCosmilamp (buff)Cosmilamp
Buff tooltipThe cosmilamp will protect you
RarityRarity Level: 13
Sell 28 Gold Coin.png
Dropped by
Signus, Envoy of the Devourer122.5% / 30.83%
Summons Minion
Cosmilamp (minion)
Cosmilamp (minion).png
Not to be confused with Cosmic Lantern, a boss servant enemy spawned by Signus.

The Cosmilamp is a post-Moon Lord summon weapon that drops from Signus, Envoy of the Devourer. It summons a Cosmilamp which follows the player and attacks nearby enemies. Each Cosmilamp takes up 2 minion slots.

The Cosmilamp also has a rare item variant called the Guidelight of Oblivion that drops from Signus as well.

Its best modifier is Ruthless. The Mythical modifier provides the widest array of stat bonuses, but these primarily affect the initial summon rather than the resulting minion. Additionally, minions cannot deal critical hits. The only lasting advantage a Mythical Cosmilamp has over a Ruthless one is knockback.


  • The Cosmilamp is based off of the Cosmic Lantern that is summoned by Signus, Envoy of the Devourer.