Mantis Shrimp

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Mantis Shrimp
Mantis Shrimp.png
Damage200 / 400 Expert Mode / 600 Master Mode
Max Life30 / 60 Expert Mode / 90 Master Mode
KB Resist0% / 10% Expert Mode / 20% Master Mode
BannerMantis Shrimp BannerMantis Shrimp Banner
Cold Bestiary Cold.png-
Water Bestiary Water.pngResistant
Sickness Bestiary Sickness.pngVulnerable
Electricity Bestiary Electricity.pngVulnerable
Heat Bestiary Heat.pngResistant

The Mantis Shrimp is a Hardmode enemy that spawns in the Ocean biome. It walks along the ground and chases the player. When hitting them, it will release an explosion which is purely visual and deals no damage.

After Plantera has been defeated, the Mantis Shrimp will occasionally drop the Mantis Claws, a claw-like melee weapon that mimics its main attack.


  • With its extremely high contact damage, it can kill most characters with one hit in Expert or Master Mode.
  • Because it is small and can kill a player with one to two hits, caution is advised when exploring the ocean in Hardmode.


  • The BestiaryBestiary entry for the Mantis Shrimp: "Though a variety of answers are given when one asks adventurers about dangerous creatures, few aside from sailors will mention the small yet mighty Mantis Shrimp. Their strikes are so swift that the energy generated from them heats the water to temperatures rivaling the magma of Azafure."
  • Similarly to real Mantis shrimps, their claws are extremely powerful for their size and can easily kill their prey in one hit.
  • The Mantis Shrimp has the highest contact damage of all non-boss enemies.


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
  • Now has 25% less health and 10% less damage in Master Mode.
  • Now vulnerable to electricity and sickness debuffs, but resistant to water and heat debuffs.
  • Decreased minimum coin drop amount from 5 Silver Coin to 1 Silver Coin.
  • Nerfed damage reduction from 25% to 10%.
  • Nerfed health from 50 / 100 Expert Mode to 30 / 60 Expert Mode.
  • Nerfed health from 140 / 280 Expert Mode to 50 / 100 Expert Mode.