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  • Lionfish.png
Stack digit 1.png
Damage45 Rogue
Knockback2.5 (Very Weak)
Critical chance4%
Use time26 Slow
TooltipSticks to enemies and injects a potent venom
This venom can stack when more lionfish are stuck in an enemy
Stealth strikes spawn homing urchin spikes as they travel
Inflicts DebuffAcid VenomAcid Venom
100% chance

Debuff duration4 seconds
Debuff tooltipLosing life
RarityRarity Level: 3
Sell 80 Silver Coin.png
Research1 required
Projectile created
Urchin Spike
Urchin Spike
Dropped by
Ancient Treasure Chest1100%
Hydrothermal Crate
Sulphurous Crate
110% (Post-Slime God Core map.png/Map Icon Wall of Flesh.png)

The Lionfish is a Pre-Hardmode rogue weapon that is obtained from Ancient Treasure Chests in the Abyss. When used, it hurls a Lionfish which travels in a straight line for a long distance before being affected by gravity. Lionfish projectiles will explode upon hitting a tile or after being stuck to an enemy for several seconds. This explosion is purely cosmetic and deals no damage.

The Lionfish inflicts Acid Venom on contact with enemies and sticks to them. Unlike most weapons that deal Acid Venom, the damage over time dealt by the Lionfish stacks. Each Lionfish stuck an in enemy increases the damage of the Acid Venom debuff by 15 damage per second, up to 3 Lionfish at a time for a maximum of 60 damage per second.

Performing a stealth strike with the Lionfish causes the resulting projectile to release 5 homing urchin spikes when thrown and spawn spikes every 7 frames when traveling.

Its best modifier is Flawless.



  • Lionfish are a real-world fish known for their venomous spikes.


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
    • Nerfed use time from 22 to 26. Up to 3 lionfish can be stuck in an enemy at once instead of 6.
    • Stealth strikes now spawn 5 spikes when initially thrown, spawn spikes every 7 frames instead of 8 while traveling, and spikes have a larger homing range.
    • Tooltip now mentions that its Acid Venom infliction can stack.
  • No longer considered a nature weapon.
  • Fixed thrown projectile's sprite rotation issue.
    • Decreased the damage of improved Venom debuff.
    • Added a tooltip.
  • Nerfed damage when attached to a target by 50%.