Entropy's Vigil

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Entropy's Vigil
  • Entropy's Vigil.png
Stack digit 1.png
Damage40 Summon
Knockback2 (Very Weak)
Mana cost10
Use time24 Slow
TooltipSummons a mini Calamitas Clone and her brothers to protect you
One minion trio takes two minion slots
Grants BuffEntropy's Vigil (buff)Entropy's Vigil
Buff tooltipThe necromantic clones protect you with undying vigilance
Inflicts DebuffBrimstone FlamesBrimstone Flames
100% chance

Debuff duration2 seconds (Laser, Flamethrower)
Debuff tooltipIncinerating both body and mind
RarityRarity Level: 7
Sell 9 Gold Coin.png 60 Silver Coin.png
Research1 required
Projectile created
Brimstone Laser
Brimstone Laser
Dropped by
Calamitas Clone125% / 33.33% Expert Mode
Summons Minions

The Entropy's Vigil is a Hardmode summon weapon that is dropped by Calamitas Clone. Upon use with two or more minion slots, the staff summons 3 miniature clones of Calamitas and her brothers, Catastrophic Construct and Cataclysmic Construct (named Calamitamini, Catastromini, and Cataclymini respectively). Calamitamini will shoot brimstone lasers, Catastromini will charge into enemies, and Cataclymini will breathe brimstone flame. If the player has one minion slot remaining, only Calamitamini will be summoned.

Entropy's Vigil is very similar to the Optic Staff in that it spawns minions based on a boss that each have their own form of attack; however, Entropy's Vigil does offer certain advantages over the Optic Staff. It spawns 3 separate minions instead of 2, the minions can travel through blocks and they can hit targets at a much higher speed.

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 Entropy's Vigil has over a Ruthless one is knockback.



Crafting Station
Shimmer TransmutationShimmer Transmutation
Cinders of LamentCinders of Lament1
Entropy's VigilEntropy's Vigil1


  • Although the staff summons 3 minions, they only take up 2 minion slots.
  • Attempting to summon more minions than the limit will only respawn the Calamitamini without the brothers.
    • Therefore, the player should be careful when summoning the minions as fewer brothers may be gained.
  • This staff can be extremely powerful on stationary and big targets.


  • This staff can be considered an indirect upgrade to the Optic Staff.
  • Just like the Optic Staff, the eyes retain some of their original name with "-mini" at the end.

See Also


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
  • Decreased sell price from 12 Gold Coin to 9 Gold Coin.png 60 Silver Coin.png.
  • Renamed buff from "Blighted Eyes" to "Entropy's Vigil".
  • Cataclymini's fire and Catastromini now grant ID-static immunity frames.
    • Buffed damage from 27 to 35.
    • Now requires 2 minion slots to summon the whole trio. Having 1 minion slot left will only summon Calamitamini.
  • Fixed minions not benefitting from increased all-class damage.
    • Nerfed damage from 35 to 32.
    • Cataclymini's flamethrower now pierces twice instead of infinitely, and now sets NPC immunity frames to 9 instead of 7.
    • Catastromini now sets NPC immunity frames to 9 instead of 7.
    • Increased Brimstone Flames duration from Cataclymini's flamethrower from 1.67 seconds to 2, and from Calamitamini's lasers from 1 second to 2.
  • Projectiles shot by eyes now deal 100% base damage instead of 80%.
  • Removed 75% size modifier on its sprite.
  • Resprited Calamitamini and Catastromini minions.
    • Can no longer be crafted.
    • Changed tooltip from "Summons Calamitas and her brothers to fight for you. All 3 minions take up 1 minion slot" to "Summons Calamitas and her brothers to protect you".
    • Resprited it and Blighted Eyes buff.
  • Blighted Eyes now take up 1 minion slot.
  • Lasers and fire no longer collide with blocks.
    • Increased drop chance from 6.25% / 6.67% Expert Mode to 25% / 33% Expert Mode.
    • Fixed not being able to use the minion targeting feature.
  • Fixed it displaying buff time in tooltip.
  • 1.1.7: Now produces dust when summoning its minions.
    • Renamed from "Blighted Eye Staff" to "Entropy's Vigil".
    • Resprited.
  • Now requires a Hardmode Anvil to craft instead of a Particle Accelerator.
  • Fixed fire and lasers interacting strangely with tiles.
  • 1.1.5: Fixed flames and lasers not dealing summon damage.
    • Nerfed damage from 41 to 35.
    • Each eye now takes up half a minion slot instead of one.
    • Now uses 6 Blighted Lenses in its recipe instead of 9.