Calamity Mod Wiki
  • Alluvion.png
Stack digit 1.png
TypeWeaponCrafting material
Damage165 Ranged
Knockback4 (Weak)
Critical chance4%
Use time30 Average
TooltipConverts wooden arrows into sharks, torrential and typhoon arrows
Fires a torrent of six arrows at once
RarityRarity Level: 14
Sell 36 Gold Coin.png
Projectiles created
Typhoon Arrow
Typhoon Arrow
Mini Sharkron
Mini Sharkron

Attacking with the Alluvion

The Alluvion is a craftable post-Moon Lord bow and a direct upgrade of the Monsoon. It rapidly auto-fires volleys of 6 arrows. While equipped with Wooden Arrows each fired arrow is replaced by either a Torrential Arrow, a shark, or a Typhoon Arrow.

  • Arrows fired have a 7.92% chance of turning into Torrential Arrows, which are high-velocity lasers that ignore NPC immunity frames.
  • Arrows fired have a 3.96% chance of turning into sharks.
  • Arrows fired have a 1% chance of turning into Typhoon Arrows, which erupt into swirling typhoons on contact with enemies or tiles.

Its best modifier is Unreal.


For a full crafting tree, see here.


Crafting Station
Cosmic AnvilCosmic Anvil
Depth CellsDepth Cells10
Cosmilite BarCosmilite Bar8
Endothermic EnergyEndothermic Energy20

Used in[]


  • This weapon is a good way to farm The Devourer of Gods, as its piercing Torrential Arrows and area of effect Typhoon Arrows can cause significant damage to the Devourer's many segments. If used correctly when paired with Bloodfire Arrows, it is possible to quickly recover damage dealt by the Devourer thanks to the Bloodfire Arrows' healing effect.
  • Use this weapon with Elemental Quiver. Its high rate of fire and bundled arrows will split into a devastating wall of projectiles. Split Typhoon Arrows will create typhoons in midair even if they do not strike a target and the typhoons themselves will also split and multiply, further increasing damage and coverage.


  • The word "alluvion" can refer to either a flood or the flow of water against a shore.
  • The Alluvion and the Monsoon both share the color scheme of the Tempest Staff.